Merge from trunk r77627 (merged lexical_cast optimizations for iterator_range<>, fixed performance regression, docs updated)

[SVN r77628]
This commit is contained in:
Antony Polukhin
2012-03-29 16:48:31 +00:00
parent a065884c59
commit 93ee01ab69
5 changed files with 753 additions and 362 deletions

View File

@@ -115,6 +115,55 @@ Exception used to indicate runtime lexical_cast failure.
[endsect]
[section Tuning classes for fast lexical conversions]
Because of `boost::lexical_cast` optimizations for `boost::iterator_range<character_type*>`, it is possibile to make very fast lexical conversions for non zero terminated strings, substrings and user-defined classes.
Consider the following example:
``
class example_class {
char non_zero_terminated_data[10];
std::size_t data_length;
public:
example_class();
void fill_data();
const char* data() const {
return non_zero_terminated_data;
}
std::size_t size() const {
return data_length;
}
};
inline std::ostream& operator << (std::ostream& ostr, const example_class& rhs) {
return ostr << boost::make_iterator_range(rhs.data(), rhs.data() + rhs.size());
}
``
This is a good generic solution for most use cases.
But we can make it even faster for some performance critical applications. During conversion, we loose speed at:
* `std::ostream` construction (it makes some heap allocations)
* `operator <<` (it copyies one by one all the symbols to an instance of `std::ostream`)
* `std::ostream` destruction (it makes some heap deallocations)
We can avoid all of this, by specifieng an overload for `boost::lexical_cast`:
``
namespace boost {
template <class OutT>
OutT lexical_cast(const example_class& rhs) {
return boost::lexical_cast<OutT>(
boost::make_iterator_range(rhs.data(), rhs.data() + rhs.size())
);
}
}
``
Now `boost::lexical_cast<some_type>(example_class_instance)` conversions won't copy data and construct heavy STL stream objects. See [link boost_lexical_cast.performance Performance] section for info on `boost::iterator_range` conversion performance.
[endsect]
[section Frequently Asked Questions]
* [*Question:] Why does `lexical_cast<int8_t>("127")` throw `bad_lexical_cast`?
@@ -175,6 +224,9 @@ limitation of compiler options that you use.
, `"-inf"` (case insensitive) strings to get NaN and Inf values. `boost::lexical_cast<string>` outputs `"-nan"`, `"nan"`,
`"inf"`, `"-inf"` strings, when has NaN or Inf input values.
* [*Question:] What is the fastest way to convert a non zero terminated string or a substring using `boost::lexical_cast`?
* [*Answer:] Use `boost::iterator_range` for conversion. For example, if you whant to convert to `int` two characters from a string `str`, you shall write `lexacal_cast<int>(make_iterator_range(str.c_str(), str.c_str() + 2));`.
[endsect]
[section Changes]
@@ -182,7 +234,8 @@ limitation of compiler options that you use.
* `boost::bad_lexical_cast` exception is now globaly visible and can be catched even if code is compiled with -fvisibility=hidden.
* Now it is possible to compile library with disabled exceptions.
* Better performance, less memory usage and bugfixes for `boost::iterator_range<character_type*>` conversions.
* [*boost 1.49.0 :]
* Restored work with typedefed wchar_t (compilation flag /Zc:wchar_t- for Visual Studio).
@@ -267,364 +320,415 @@ Do not use this results to compare compilers, because tests were taken on differ
[/ BEGIN of section, generated by performance measuring program ]
[section clang-linux-2.8][table:id Performance Table (clang-linux-2.8)
[section Clang version 2.9 (tags/RELEASE_29/final)]
[table:id Performance Table ( Clang version 2.9 (tags/RELEASE_29/final))
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 148 ][ 14 ][ 12 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 97 ][ 8 ][ 7 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ 13 ]]
[[ string->int ][ !!! *4* !!! ][ 102 ][ 19 ][ 15 ]]
[[ string->short ][ !!! *4* !!! ][ 105 ][ 20 ][ 15 ]]
[[ string->long int ][ !!! *4* !!! ][ 105 ][ 19 ][ 15 ]]
[[ string->long long ][ !!! *4* !!! ][ 115 ][ 19 ][ 14 ]]
[[ string->unsigned int ][ !!! *4* !!! ][ 102 ][ 18 ][ 14 ]]
[[ string->unsigned short ][ !!! *4* !!! ][ 101 ][ 19 ][ 15 ]]
[[ string->unsigned long int ][ !!! *3* !!! ][ 107 ][ 20 ][ 14 ]]
[[ string->unsigned long long ][ !!! *3* !!! ][ 103 ][ 20 ][ 14 ]]
[[ string->bool ][ !!! *<1* !!! ][ 97 ][ 16 ][ 8 ]]
[[ string->float ][ !!! *21* !!! ][ 170 ][ 61 ][ 32 ]]
[[ string->double ][ !!! *18* !!! ][ 206 ][ 93 ][ 58 ]]
[[ string->long double ][ 135 ][ 221 ][ 94 ][ !!! *57* !!! ]]
[[ char->string ][ !!! *7* !!! ][ 100 ][ 17 ][ 13 ]]
[[ unsigned char->string ][ !!! *7* !!! ][ 99 ][ 18 ][ 16 ]]
[[ signed char->string ][ !!! *7* !!! ][ 101 ][ 17 ][ 12 ]]
[[ int->string ][ !!! *13* !!! ][ 110 ][ 23 ][ 15 ]]
[[ short->string ][ !!! *13* !!! ][ 112 ][ 24 ][ 18 ]]
[[ long int->string ][ !!! *13* !!! ][ 119 ][ 23 ][ 17 ]]
[[ long long->string ][ !!! *13* !!! ][ 110 ][ 23 ][ 18 ]]
[[ unsigned int->string ][ !!! *14* !!! ][ 113 ][ 24 ][ 17 ]]
[[ unsigned short->string ][ !!! *13* !!! ][ 108 ][ 24 ][ 17 ]]
[[ unsigned long int->string ][ !!! *13* !!! ][ 109 ][ 24 ][ 16 ]]
[[ unsigned long long->string ][ !!! *13* !!! ][ 110 ][ 23 ][ 17 ]]
[[ bool->string ][ !!! *7* !!! ][ 105 ][ 24 ][ 12 ]]
[[ float->string ][ 70 ][ 192 ][ 94 ][ !!! *49* !!! ]]
[[ double->string ][ 106 ][ 217 ][ 122 ][ !!! *76* !!! ]]
[[ long double->string ][ 120 ][ 219 ][ 123 ][ !!! *80* !!! ]]
[[ char*->char ][ !!! *2* !!! ][ 90 ][ 9 ][ 8 ]]
[[ char*->signed char ][ !!! *2* !!! ][ 87 ][ 10 ][ 7 ]]
[[ char*->unsigned char ][ !!! *3* !!! ][ 90 ][ 10 ][ 13 ]]
[[ char*->int ][ !!! *6* !!! ][ 107 ][ 21 ][ 15 ]]
[[ char*->short ][ !!! *6* !!! ][ 110 ][ 19 ][ 14 ]]
[[ char*->long int ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
[[ char*->long long ][ !!! *7* !!! ][ 104 ][ 20 ][ 15 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 101 ][ 20 ][ 15 ]]
[[ char*->unsigned short ][ !!! *7* !!! ][ 100 ][ 20 ][ 14 ]]
[[ char*->unsigned long int ][ !!! *6* !!! ][ 105 ][ 22 ][ 15 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 106 ][ 21 ][ 14 ]]
[[ char*->bool ][ !!! *2* !!! ][ 99 ][ 18 ][ 7 ]]
[[ char*->float ][ !!! *22* !!! ][ 159 ][ 67 ][ 33 ]]
[[ char*->double ][ !!! *20* !!! ][ 205 ][ 94 ][ 58 ]]
[[ char*->long double ][ 140 ][ 214 ][ 95 ][ !!! *58* !!! ]]
[[ unsigned char*->char ][ !!! *2* !!! ][ 92 ][ 9 ][ 7 ]]
[[ unsigned char*->signed char ][ !!! *2* !!! ][ 89 ][ 10 ][ 7 ]]
[[ unsigned char*->unsigned char ][ !!! *2* !!! ][ 89 ][ 10 ][ 14 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 104 ][ 20 ][ 14 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 106 ][ 21 ][ 14 ]]
[[ unsigned char*->long int ][ !!! *6* !!! ][ 105 ][ 19 ][ 14 ]]
[[ unsigned char*->long long ][ !!! *6* !!! ][ 106 ][ 20 ][ 15 ]]
[[ unsigned char*->unsigned int ][ !!! *7* !!! ][ 105 ][ 19 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 106 ][ 19 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 104 ][ 21 ][ 15 ]]
[[ unsigned char*->bool ][ !!! *2* !!! ][ 102 ][ 18 ][ 7 ]]
[[ unsigned char*->float ][ !!! *23* !!! ][ 160 ][ 66 ][ 32 ]]
[[ unsigned char*->double ][ !!! *20* !!! ][ 201 ][ 95 ][ 58 ]]
[[ unsigned char*->long double ][ 144 ][ 221 ][ 95 ][ !!! *60* !!! ]]
[[ unsigned char*->string ][ !!! *12* !!! ][ 104 ][ 23 ][ --- ]]
[[ signed char*->char ][ !!! *2* !!! ][ 90 ][ 9 ][ 7 ]]
[[ signed char*->signed char ][ !!! *2* !!! ][ 89 ][ 9 ][ 7 ]]
[[ signed char*->unsigned char ][ !!! *2* !!! ][ 89 ][ 10 ][ 13 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 106 ][ 19 ][ 15 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 107 ][ 20 ][ 15 ]]
[[ signed char*->long int ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
[[ signed char*->long long ][ !!! *6* !!! ][ 103 ][ 19 ][ 14 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 101 ][ 19 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 101 ][ 19 ][ 16 ]]
[[ signed char*->unsigned long int ][ !!! *6* !!! ][ 105 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 104 ][ 21 ][ 15 ]]
[[ signed char*->bool ][ !!! *2* !!! ][ 100 ][ 18 ][ 7 ]]
[[ signed char*->float ][ !!! *23* !!! ][ 161 ][ 62 ][ 32 ]]
[[ signed char*->double ][ !!! *20* !!! ][ 207 ][ 102 ][ 57 ]]
[[ signed char*->long double ][ 144 ][ 216 ][ 96 ][ !!! *63* !!! ]]
[[ signed char*->string ][ !!! *12* !!! ][ 104 ][ 23 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 110 ][ 22 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 223 ][ 113 ][ --- ]]
[[ double->double ][ !!! *<1* !!! ][ 227 ][ 111 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 231 ][ 122 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 229 ][ 121 ][ --- ]]
[[ char->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 88 ][ 8 ][ --- ]]
[[ unsigned char->char ][ !!! *<1* !!! ][ 89 ][ 8 ][ --- ]]
[[ signed char->char ][ !!! *<1* !!! ][ 91 ][ 9 ][ --- ]]
[[ string->char ][ !!! *<1* !!! ][ 319 ][ 17 ][ 16 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 192 ][ 16 ][ 9 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 142 ][ 9 ][ 9 ]]
[[ string->int ][ !!! *7* !!! ][ 109 ][ 21 ][ 16 ]]
[[ string->short ][ !!! *6* !!! ][ 113 ][ 21 ][ 15 ]]
[[ string->long int ][ !!! *7* !!! ][ 110 ][ 22 ][ 15 ]]
[[ string->long long ][ !!! *7* !!! ][ 112 ][ 23 ][ 17 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 107 ][ 19 ][ 14 ]]
[[ string->unsigned short ][ !!! *6* !!! ][ 106 ][ 18 ][ 16 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 108 ][ 20 ][ 15 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 109 ][ 22 ][ 15 ]]
[[ string->float ][ !!! *14* !!! ][ 204 ][ 81 ][ 43 ]]
[[ string->double ][ !!! *24* !!! ][ 244 ][ 74 ][ 45 ]]
[[ string->long double ][ 121 ][ 170 ][ 62 ][ !!! *38* !!! ]]
[[ string->string ][ !!! *1* !!! ][ 124 ][ 25 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 121 ][ 28 ][ --- ]]
[[ string->char ][ 6 ][ 115 ][ 26 ][ !!! *6* !!! ]]
[[ string->signed char ][ !!! *6* !!! ][ 115 ][ 23 ][ 21 ]]
[[ string->unsigned char ][ !!! *6* !!! ][ 113 ][ 25 ][ 22 ]]
[[ int->string ][ !!! *12* !!! ][ 128 ][ 29 ][ 19 ]]
[[ short->string ][ !!! *12* !!! ][ 128 ][ 29 ][ 21 ]]
[[ long int->string ][ !!! *12* !!! ][ 132 ][ 29 ][ 21 ]]
[[ long long->string ][ !!! *12* !!! ][ 127 ][ 29 ][ 22 ]]
[[ unsigned int->string ][ !!! *12* !!! ][ 137 ][ 33 ][ 19 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 137 ][ 31 ][ 20 ]]
[[ unsigned long int->string ][ !!! *12* !!! ][ 136 ][ 30 ][ 21 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 128 ][ 27 ][ 23 ]]
[[ float->string ][ 51 ][ 187 ][ 82 ][ !!! *44* !!! ]]
[[ double->string ][ 56 ][ 190 ][ 83 ][ !!! *42* !!! ]]
[[ long double->string ][ 69 ][ 208 ][ 90 ][ !!! *54* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 138 ][ 18 ][ 8 ]]
[[ char*->signed char ][ !!! *8* !!! ][ 126 ][ 10 ][ 9 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 9 ][ 9 ]]
[[ char*->int ][ !!! *8* !!! ][ 113 ][ 22 ][ 15 ]]
[[ char*->short ][ !!! *7* !!! ][ 113 ][ 22 ][ 17 ]]
[[ char*->long int ][ !!! *8* !!! ][ 111 ][ 23 ][ 15 ]]
[[ char*->long long ][ !!! *9* !!! ][ 112 ][ 24 ][ 18 ]]
[[ char*->unsigned int ][ !!! *8* !!! ][ 113 ][ 20 ][ 15 ]]
[[ char*->unsigned short ][ !!! *8* !!! ][ 113 ][ 20 ][ 15 ]]
[[ char*->unsigned long int ][ !!! *8* !!! ][ 112 ][ 21 ][ 16 ]]
[[ char*->unsigned long long ][ !!! *9* !!! ][ 110 ][ 23 ][ 14 ]]
[[ char*->float ][ !!! *14* !!! ][ 149 ][ 54 ][ 32 ]]
[[ char*->double ][ !!! *15* !!! ][ 166 ][ 59 ][ 33 ]]
[[ char*->long double ][ 122 ][ 171 ][ 63 ][ !!! *38* !!! ]]
[[ char*->string ][ !!! *7* !!! ][ 126 ][ 26 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 124 ][ 27 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 99 ][ 10 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 102 ][ 10 ][ 9 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 10 ][ 9 ]]
[[ unsigned char*->int ][ !!! *7* !!! ][ 115 ][ 24 ][ 15 ]]
[[ unsigned char*->short ][ !!! *7* !!! ][ 115 ][ 25 ][ 17 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 115 ][ 22 ][ 16 ]]
[[ unsigned char*->long long ][ !!! *8* !!! ][ 116 ][ 23 ][ 16 ]]
[[ unsigned char*->unsigned int ][ !!! *8* !!! ][ 113 ][ 20 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *7* !!! ][ 114 ][ 21 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 114 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *9* !!! ][ 112 ][ 23 ][ 16 ]]
[[ unsigned char*->float ][ !!! *14* !!! ][ 149 ][ 52 ][ 32 ]]
[[ unsigned char*->double ][ !!! *15* !!! ][ 165 ][ 59 ][ 33 ]]
[[ unsigned char*->long double ][ 122 ][ 172 ][ 63 ][ !!! *37* !!! ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 125 ][ 26 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 119 ][ 26 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 98 ][ 10 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 95 ][ 10 ][ 9 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 9 ][ 9 ]]
[[ signed char*->int ][ !!! *8* !!! ][ 111 ][ 21 ][ 15 ]]
[[ signed char*->short ][ !!! *7* !!! ][ 114 ][ 22 ][ 16 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 113 ][ 22 ][ 17 ]]
[[ signed char*->long long ][ !!! *8* !!! ][ 116 ][ 24 ][ 17 ]]
[[ signed char*->unsigned int ][ !!! *8* !!! ][ 109 ][ 20 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *8* !!! ][ 111 ][ 20 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 109 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 111 ][ 23 ][ 15 ]]
[[ signed char*->float ][ !!! *14* !!! ][ 150 ][ 53 ][ 32 ]]
[[ signed char*->double ][ !!! *15* !!! ][ 168 ][ 59 ][ 30 ]]
[[ signed char*->long double ][ 123 ][ 174 ][ 62 ][ !!! *37* !!! ]]
[[ signed char*->string ][ !!! *8* !!! ][ 127 ][ 28 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 124 ][ 27 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 13 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 107 ][ 13 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 121 ][ 26 ][ 13 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 165 ][ 33 ][ 23 ]]
[[ iterator_range<char*>->short ][ !!! *8* !!! ][ 175 ][ 34 ][ 29 ]]
[[ iterator_range<char*>->long int ][ !!! *14* !!! ][ 160 ][ 33 ][ 23 ]]
[[ iterator_range<char*>->long long ][ !!! *10* !!! ][ 199 ][ 35 ][ 28 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 131 ][ 24 ][ 16 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *7* !!! ][ 110 ][ 22 ][ 16 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 111 ][ 22 ][ 14 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *8* !!! ][ 115 ][ 24 ][ 15 ]]
[[ iterator_range<char*>->float ][ !!! *13* !!! ][ 134 ][ 40 ][ 33 ]]
[[ iterator_range<char*>->double ][ !!! *15* !!! ][ 140 ][ 59 ][ 41 ]]
[[ iterator_range<char*>->long double ][ 131 ][ 146 ][ 53 ][ !!! *38* !!! ]]
[[ iterator_range<char*>->string ][ !!! *9* !!! ][ 121 ][ 31 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *4* !!! ][ 115 ][ 25 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 113 ][ 25 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 234 ][ 117 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ --- ]]
]
[endsect]
[section gcc-4.4][table:id Performance Table (gcc-4.4)
[section GNU C++ version 4.6.1]
[table:id Performance Table ( GNU C++ version 4.6.1)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 90 ][ 7 ][ 7 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 88 ][ 7 ][ 8 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 88 ][ 8 ][ 14 ]]
[[ string->int ][ !!! *3* !!! ][ 103 ][ 18 ][ 15 ]]
[[ string->short ][ !!! *3* !!! ][ 105 ][ 20 ][ 15 ]]
[[ string->long int ][ !!! *3* !!! ][ 101 ][ 18 ][ 16 ]]
[[ string->long long ][ !!! *3* !!! ][ 101 ][ 18 ][ 15 ]]
[[ string->unsigned int ][ !!! *3* !!! ][ 98 ][ 23 ][ 14 ]]
[[ string->unsigned short ][ !!! *3* !!! ][ 100 ][ 17 ][ 14 ]]
[[ string->unsigned long int ][ !!! *3* !!! ][ 100 ][ 21 ][ 15 ]]
[[ string->unsigned long long ][ !!! *3* !!! ][ 99 ][ 19 ][ 15 ]]
[[ string->bool ][ !!! *<1* !!! ][ 95 ][ 16 ][ 8 ]]
[[ string->float ][ !!! *13* !!! ][ 160 ][ 61 ][ 33 ]]
[[ string->double ][ !!! *14* !!! ][ 206 ][ 93 ][ 59 ]]
[[ string->long double ][ 128 ][ 217 ][ 96 ][ !!! *61* !!! ]]
[[ char->string ][ !!! *7* !!! ][ 100 ][ 17 ][ 12 ]]
[[ unsigned char->string ][ !!! *7* !!! ][ 109 ][ 17 ][ 16 ]]
[[ signed char->string ][ !!! *7* !!! ][ 99 ][ 17 ][ 12 ]]
[[ int->string ][ !!! *13* !!! ][ 110 ][ 21 ][ 15 ]]
[[ short->string ][ !!! *14* !!! ][ 110 ][ 22 ][ 17 ]]
[[ long int->string ][ !!! *14* !!! ][ 109 ][ 21 ][ 16 ]]
[[ long long->string ][ !!! *13* !!! ][ 114 ][ 20 ][ 17 ]]
[[ unsigned int->string ][ !!! *13* !!! ][ 109 ][ 23 ][ 15 ]]
[[ unsigned short->string ][ !!! *14* !!! ][ 109 ][ 23 ][ 17 ]]
[[ unsigned long int->string ][ !!! *13* !!! ][ 112 ][ 23 ][ 16 ]]
[[ unsigned long long->string ][ !!! *14* !!! ][ 109 ][ 21 ][ 17 ]]
[[ bool->string ][ !!! *7* !!! ][ 108 ][ 23 ][ 11 ]]
[[ float->string ][ 63 ][ 185 ][ 92 ][ !!! *50* !!! ]]
[[ double->string ][ 106 ][ 216 ][ 116 ][ !!! *75* !!! ]]
[[ long double->string ][ 118 ][ 219 ][ 119 ][ !!! *80* !!! ]]
[[ char*->char ][ !!! *1* !!! ][ 93 ][ 9 ][ 9 ]]
[[ char*->signed char ][ !!! *1* !!! ][ 92 ][ 9 ][ 9 ]]
[[ char*->unsigned char ][ !!! *1* !!! ][ 92 ][ 9 ][ 14 ]]
[[ char*->int ][ !!! *4* !!! ][ 107 ][ 19 ][ 15 ]]
[[ char*->short ][ !!! *5* !!! ][ 109 ][ 19 ][ 15 ]]
[[ char*->long int ][ !!! *4* !!! ][ 113 ][ 19 ][ 15 ]]
[[ char*->long long ][ !!! *4* !!! ][ 108 ][ 20 ][ 15 ]]
[[ char*->unsigned int ][ !!! *4* !!! ][ 106 ][ 19 ][ 15 ]]
[[ char*->unsigned short ][ !!! *4* !!! ][ 106 ][ 18 ][ 15 ]]
[[ char*->unsigned long int ][ !!! *4* !!! ][ 103 ][ 22 ][ 15 ]]
[[ char*->unsigned long long ][ !!! *4* !!! ][ 105 ][ 20 ][ 15 ]]
[[ char*->bool ][ !!! *1* !!! ][ 104 ][ 18 ][ 8 ]]
[[ char*->float ][ !!! *15* !!! ][ 164 ][ 62 ][ 33 ]]
[[ char*->double ][ !!! *16* !!! ][ 203 ][ 97 ][ 58 ]]
[[ char*->long double ][ 132 ][ 223 ][ 98 ][ !!! *60* !!! ]]
[[ unsigned char*->char ][ !!! *2* !!! ][ 90 ][ 9 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *2* !!! ][ 92 ][ 10 ][ 8 ]]
[[ unsigned char*->unsigned char ][ !!! *2* !!! ][ 91 ][ 9 ][ 14 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 106 ][ 20 ][ 15 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 106 ][ 21 ][ 15 ]]
[[ unsigned char*->long int ][ !!! *6* !!! ][ 111 ][ 19 ][ 15 ]]
[[ unsigned char*->long long ][ !!! *6* !!! ][ 107 ][ 20 ][ 15 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 105 ][ 19 ][ 15 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 103 ][ 18 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 106 ][ 22 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 105 ][ 20 ][ 14 ]]
[[ unsigned char*->bool ][ !!! *2* !!! ][ 106 ][ 18 ][ 8 ]]
[[ unsigned char*->float ][ !!! *15* !!! ][ 167 ][ 68 ][ 33 ]]
[[ unsigned char*->double ][ !!! *17* !!! ][ 203 ][ 99 ][ 58 ]]
[[ unsigned char*->long double ][ 129 ][ 216 ][ 97 ][ !!! *61* !!! ]]
[[ unsigned char*->string ][ !!! *13* !!! ][ 111 ][ 23 ][ --- ]]
[[ signed char*->char ][ !!! *2* !!! ][ 92 ][ 9 ][ 8 ]]
[[ signed char*->signed char ][ !!! *2* !!! ][ 91 ][ 9 ][ 8 ]]
[[ signed char*->unsigned char ][ !!! *2* !!! ][ 91 ][ 9 ][ 14 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 107 ][ 19 ][ 15 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 109 ][ 24 ][ 14 ]]
[[ signed char*->long int ][ !!! *6* !!! ][ 112 ][ 19 ][ 15 ]]
[[ signed char*->long long ][ !!! *5* !!! ][ 107 ][ 20 ][ 15 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 108 ][ 20 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 104 ][ 18 ][ 15 ]]
[[ signed char*->unsigned long int ][ !!! *6* !!! ][ 102 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 104 ][ 20 ][ 15 ]]
[[ signed char*->bool ][ !!! *2* !!! ][ 104 ][ 18 ][ 8 ]]
[[ signed char*->float ][ !!! *16* !!! ][ 165 ][ 63 ][ 33 ]]
[[ signed char*->double ][ !!! *16* !!! ][ 203 ][ 98 ][ 59 ]]
[[ signed char*->long double ][ 129 ][ 215 ][ 98 ][ !!! *61* !!! ]]
[[ signed char*->string ][ !!! *13* !!! ][ 109 ][ 21 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 109 ][ 21 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 221 ][ 102 ][ --- ]]
[[ double->double ][ !!! *<1* !!! ][ 223 ][ 103 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 231 ][ 115 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 231 ][ 115 ][ --- ]]
[[ char->unsigned char ][ !!! *<1* !!! ][ 92 ][ 8 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 88 ][ 8 ][ --- ]]
[[ unsigned char->char ][ !!! *<1* !!! ][ 88 ][ 7 ][ --- ]]
[[ signed char->char ][ !!! *<1* !!! ][ 89 ][ 8 ][ --- ]]
[[ string->char ][ !!! *<1* !!! ][ 140 ][ 17 ][ 13 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 129 ][ 8 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 91 ][ 8 ][ 10 ]]
[[ string->int ][ !!! *6* !!! ][ 110 ][ 20 ][ 14 ]]
[[ string->short ][ !!! *5* !!! ][ 106 ][ 20 ][ 14 ]]
[[ string->long int ][ !!! *7* !!! ][ 107 ][ 22 ][ 14 ]]
[[ string->long long ][ !!! *7* !!! ][ 112 ][ 21 ][ 14 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 110 ][ 20 ][ 14 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 107 ][ 18 ][ 14 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 108 ][ 23 ][ 14 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 108 ][ 21 ][ 14 ]]
[[ string->float ][ !!! *12* !!! ][ 154 ][ 57 ][ 32 ]]
[[ string->double ][ !!! *11* !!! ][ 151 ][ 61 ][ 33 ]]
[[ string->long double ][ 109 ][ 187 ][ 79 ][ !!! *55* !!! ]]
[[ string->string ][ !!! *2* !!! ][ 122 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 123 ][ 22 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 109 ][ 27 ][ 17 ]]
[[ string->signed char ][ !!! *7* !!! ][ 110 ][ 25 ][ 22 ]]
[[ string->unsigned char ][ !!! *7* !!! ][ 112 ][ 27 ][ 24 ]]
[[ int->string ][ !!! *12* !!! ][ 187 ][ 48 ][ 37 ]]
[[ short->string ][ !!! *18* !!! ][ 133 ][ 33 ][ 20 ]]
[[ long int->string ][ !!! *12* !!! ][ 129 ][ 32 ][ 21 ]]
[[ long long->string ][ !!! *12* !!! ][ 127 ][ 35 ][ 23 ]]
[[ unsigned int->string ][ !!! *15* !!! ][ 133 ][ 31 ][ 21 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 133 ][ 31 ][ 21 ]]
[[ unsigned long int->string ][ !!! *12* !!! ][ 132 ][ 31 ][ 21 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 127 ][ 29 ][ 24 ]]
[[ float->string ][ 53 ][ 215 ][ 103 ][ !!! *40* !!! ]]
[[ double->string ][ 58 ][ 215 ][ 103 ][ !!! *41* !!! ]]
[[ long double->string ][ 67 ][ 227 ][ 112 ][ !!! *45* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 132 ][ 12 ][ 8 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 9 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 96 ][ 10 ][ 9 ]]
[[ char*->int ][ !!! *6* !!! ][ 109 ][ 22 ][ 14 ]]
[[ char*->short ][ !!! *5* !!! ][ 109 ][ 26 ][ 14 ]]
[[ char*->long int ][ !!! *7* !!! ][ 111 ][ 23 ][ 14 ]]
[[ char*->long long ][ !!! *8* !!! ][ 112 ][ 25 ][ 16 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 113 ][ 19 ][ 14 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 111 ][ 20 ][ 14 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 109 ][ 21 ][ 14 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 111 ][ 22 ][ 14 ]]
[[ char*->float ][ !!! *12* !!! ][ 156 ][ 62 ][ 32 ]]
[[ char*->double ][ !!! *13* !!! ][ 156 ][ 65 ][ 33 ]]
[[ char*->long double ][ 108 ][ 156 ][ 59 ][ !!! *36* !!! ]]
[[ char*->string ][ !!! *7* !!! ][ 123 ][ 29 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 116 ][ 24 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 96 ][ 12 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ 9 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 93 ][ 10 ][ 9 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 110 ][ 22 ][ 14 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 111 ][ 22 ][ 15 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 110 ][ 23 ][ 14 ]]
[[ unsigned char*->long long ][ !!! *7* !!! ][ 111 ][ 25 ][ 14 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 111 ][ 21 ][ 16 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 110 ][ 21 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *8* !!! ][ 114 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *8* !!! ][ 108 ][ 23 ][ 15 ]]
[[ unsigned char*->float ][ !!! *12* !!! ][ 154 ][ 62 ][ 33 ]]
[[ unsigned char*->double ][ !!! *14* !!! ][ 157 ][ 65 ][ 32 ]]
[[ unsigned char*->long double ][ 107 ][ 154 ][ 56 ][ !!! *36* !!! ]]
[[ unsigned char*->string ][ !!! *9* !!! ][ 122 ][ 28 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 118 ][ 26 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 94 ][ 10 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 94 ][ 12 ][ 9 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 95 ][ 12 ][ 9 ]]
[[ signed char*->int ][ !!! *7* !!! ][ 109 ][ 22 ][ 14 ]]
[[ signed char*->short ][ !!! *5* !!! ][ 108 ][ 22 ][ 14 ]]
[[ signed char*->long int ][ !!! *7* !!! ][ 110 ][ 23 ][ 14 ]]
[[ signed char*->long long ][ !!! *7* !!! ][ 110 ][ 25 ][ 15 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 109 ][ 20 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 107 ][ 21 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 111 ][ 21 ][ 14 ]]
[[ signed char*->unsigned long long ][ !!! *7* !!! ][ 109 ][ 23 ][ 14 ]]
[[ signed char*->float ][ !!! *12* !!! ][ 156 ][ 61 ][ 31 ]]
[[ signed char*->double ][ !!! *13* !!! ][ 156 ][ 68 ][ 33 ]]
[[ signed char*->long double ][ 109 ][ 159 ][ 56 ][ !!! *36* !!! ]]
[[ signed char*->string ][ !!! *9* !!! ][ 123 ][ 28 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 125 ][ 25 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 100 ][ 13 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 98 ][ 14 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 99 ][ 12 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 108 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 110 ][ 22 ][ 17 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 107 ][ 22 ][ 15 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 110 ][ 27 ][ 15 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 107 ][ 24 ][ 15 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 106 ][ 21 ][ 15 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 110 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 109 ][ 23 ][ 16 ]]
[[ iterator_range<char*>->float ][ !!! *11* !!! ][ 137 ][ 46 ][ 33 ]]
[[ iterator_range<char*>->double ][ !!! *11* !!! ][ 131 ][ 50 ][ 33 ]]
[[ iterator_range<char*>->long double ][ 107 ][ 136 ][ 44 ][ !!! *39* !!! ]]
[[ iterator_range<char*>->string ][ !!! *8* !!! ][ 117 ][ 32 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 111 ][ 23 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 110 ][ 33 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 241 ][ 152 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 90 ][ 8 ][ --- ]]
]
[endsect]
[section gcc-4.5][table:id Performance Table (gcc-4.5)
[section GNU C++ version 4.5.4]
[table:id Performance Table ( GNU C++ version 4.5.4)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 91 ][ 8 ][ 7 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 91 ][ 8 ][ 7 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ 13 ]]
[[ string->int ][ !!! *3* !!! ][ 100 ][ 20 ][ 14 ]]
[[ string->short ][ !!! *3* !!! ][ 106 ][ 20 ][ 14 ]]
[[ string->long int ][ !!! *3* !!! ][ 100 ][ 18 ][ 14 ]]
[[ string->long long ][ !!! *9* !!! ][ 100 ][ 18 ][ 15 ]]
[[ string->unsigned int ][ !!! *3* !!! ][ 97 ][ 20 ][ 14 ]]
[[ string->unsigned short ][ !!! *3* !!! ][ 102 ][ 17 ][ 14 ]]
[[ string->unsigned long int ][ !!! *3* !!! ][ 97 ][ 21 ][ 14 ]]
[[ string->unsigned long long ][ !!! *3* !!! ][ 97 ][ 19 ][ 14 ]]
[[ string->bool ][ !!! *<1* !!! ][ 95 ][ 16 ][ 7 ]]
[[ string->float ][ !!! *15* !!! ][ 157 ][ 63 ][ 32 ]]
[[ string->double ][ !!! *17* !!! ][ 203 ][ 95 ][ 59 ]]
[[ string->long double ][ 129 ][ 216 ][ 93 ][ !!! *58* !!! ]]
[[ char->string ][ !!! *8* !!! ][ 100 ][ 17 ][ 10 ]]
[[ unsigned char->string ][ !!! *8* !!! ][ 96 ][ 18 ][ 16 ]]
[[ signed char->string ][ !!! *8* !!! ][ 96 ][ 18 ][ 10 ]]
[[ int->string ][ !!! *14* !!! ][ 105 ][ 22 ][ 15 ]]
[[ short->string ][ !!! *14* !!! ][ 107 ][ 23 ][ 17 ]]
[[ long int->string ][ !!! *14* !!! ][ 109 ][ 22 ][ 17 ]]
[[ long long->string ][ !!! *14* !!! ][ 105 ][ 22 ][ 18 ]]
[[ unsigned int->string ][ !!! *14* !!! ][ 105 ][ 25 ][ 15 ]]
[[ unsigned short->string ][ !!! *15* !!! ][ 105 ][ 23 ][ 17 ]]
[[ unsigned long int->string ][ !!! *14* !!! ][ 109 ][ 24 ][ 17 ]]
[[ unsigned long long->string ][ !!! *14* !!! ][ 102 ][ 23 ][ 17 ]]
[[ bool->string ][ !!! *8* !!! ][ 104 ][ 23 ][ 12 ]]
[[ float->string ][ 66 ][ 181 ][ 92 ][ !!! *49* !!! ]]
[[ double->string ][ 107 ][ 215 ][ 120 ][ !!! *75* !!! ]]
[[ long double->string ][ 117 ][ 221 ][ 125 ][ !!! *79* !!! ]]
[[ char*->char ][ !!! *1* !!! ][ 89 ][ 9 ][ 7 ]]
[[ char*->signed char ][ !!! *1* !!! ][ 90 ][ 9 ][ 7 ]]
[[ char*->unsigned char ][ !!! *2* !!! ][ 90 ][ 9 ][ 13 ]]
[[ char*->int ][ !!! *7* !!! ][ 103 ][ 20 ][ 15 ]]
[[ char*->short ][ !!! *6* !!! ][ 102 ][ 29 ][ 14 ]]
[[ char*->long int ][ !!! *7* !!! ][ 101 ][ 20 ][ 15 ]]
[[ char*->long long ][ !!! *6* !!! ][ 102 ][ 20 ][ 14 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 99 ][ 19 ][ 14 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 101 ][ 18 ][ 14 ]]
[[ char*->unsigned long int ][ !!! *6* !!! ][ 102 ][ 22 ][ 14 ]]
[[ char*->unsigned long long ][ !!! *6* !!! ][ 101 ][ 21 ][ 14 ]]
[[ char*->bool ][ !!! *3* !!! ][ 98 ][ 18 ][ 7 ]]
[[ char*->float ][ !!! *18* !!! ][ 162 ][ 63 ][ 31 ]]
[[ char*->double ][ !!! *17* !!! ][ 203 ][ 96 ][ 58 ]]
[[ char*->long double ][ 135 ][ 214 ][ 98 ][ !!! *58* !!! ]]
[[ unsigned char*->char ][ !!! *2* !!! ][ 87 ][ 9 ][ 7 ]]
[[ unsigned char*->signed char ][ !!! *2* !!! ][ 87 ][ 9 ][ 7 ]]
[[ unsigned char*->unsigned char ][ !!! *3* !!! ][ 87 ][ 9 ][ 13 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 105 ][ 20 ][ 14 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 102 ][ 21 ][ 14 ]]
[[ unsigned char*->long int ][ !!! *6* !!! ][ 101 ][ 20 ][ 14 ]]
[[ unsigned char*->long long ][ !!! *6* !!! ][ 102 ][ 20 ][ 14 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 99 ][ 19 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 100 ][ 18 ][ 14 ]]
[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 101 ][ 24 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 100 ][ 20 ][ 14 ]]
[[ unsigned char*->bool ][ !!! *3* !!! ][ 99 ][ 18 ][ 8 ]]
[[ unsigned char*->float ][ !!! *17* !!! ][ 164 ][ 64 ][ 32 ]]
[[ unsigned char*->double ][ !!! *18* !!! ][ 201 ][ 94 ][ 58 ]]
[[ unsigned char*->long double ][ 133 ][ 217 ][ 95 ][ !!! *60* !!! ]]
[[ unsigned char*->string ][ !!! *14* !!! ][ 103 ][ 23 ][ --- ]]
[[ signed char*->char ][ !!! *3* !!! ][ 88 ][ 10 ][ 8 ]]
[[ signed char*->signed char ][ !!! *2* !!! ][ 87 ][ 10 ][ 7 ]]
[[ signed char*->unsigned char ][ !!! *3* !!! ][ 87 ][ 9 ][ 13 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 104 ][ 20 ][ 14 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 105 ][ 21 ][ 14 ]]
[[ signed char*->long int ][ !!! *6* !!! ][ 104 ][ 20 ][ 15 ]]
[[ signed char*->long long ][ !!! *6* !!! ][ 106 ][ 20 ][ 14 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 99 ][ 20 ][ 14 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 100 ][ 18 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *6* !!! ][ 102 ][ 23 ][ 14 ]]
[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 103 ][ 20 ][ 14 ]]
[[ signed char*->bool ][ !!! *3* !!! ][ 99 ][ 18 ][ 7 ]]
[[ signed char*->float ][ !!! *18* !!! ][ 159 ][ 60 ][ 32 ]]
[[ signed char*->double ][ !!! *18* !!! ][ 203 ][ 95 ][ 57 ]]
[[ signed char*->long double ][ 129 ][ 213 ][ 97 ][ !!! *56* !!! ]]
[[ signed char*->string ][ !!! *14* !!! ][ 105 ][ 22 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 109 ][ 22 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 226 ][ 104 ][ --- ]]
[[ double->double ][ !!! *<1* !!! ][ 229 ][ 103 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 225 ][ 115 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 227 ][ 115 ][ --- ]]
[[ char->unsigned char ][ !!! *<1* !!! ][ 90 ][ 8 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 84 ][ 8 ][ --- ]]
[[ unsigned char->char ][ !!! *<1* !!! ][ 88 ][ 8 ][ --- ]]
[[ signed char->char ][ !!! *<1* !!! ][ 89 ][ 8 ][ --- ]]
[[ string->char ][ !!! *<1* !!! ][ 147 ][ 12 ][ 8 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 138 ][ 13 ][ 10 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 86 ][ 12 ][ 9 ]]
[[ string->int ][ !!! *7* !!! ][ 103 ][ 20 ][ 15 ]]
[[ string->short ][ !!! *5* !!! ][ 103 ][ 20 ][ 15 ]]
[[ string->long int ][ !!! *7* !!! ][ 103 ][ 22 ][ 15 ]]
[[ string->long long ][ !!! *7* !!! ][ 104 ][ 22 ][ 16 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 108 ][ 19 ][ 15 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 104 ][ 19 ][ 15 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 103 ][ 20 ][ 16 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 101 ][ 22 ][ 14 ]]
[[ string->float ][ !!! *13* !!! ][ 148 ][ 58 ][ 35 ]]
[[ string->double ][ !!! *13* !!! ][ 147 ][ 60 ][ 34 ]]
[[ string->long double ][ 103 ][ 149 ][ 56 ][ !!! *38* !!! ]]
[[ string->string ][ !!! *2* !!! ][ 127 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *3* !!! ][ 101 ][ 24 ][ --- ]]
[[ string->char ][ !!! *7* !!! ][ 108 ][ 35 ][ 17 ]]
[[ string->signed char ][ !!! *7* !!! ][ 112 ][ 26 ][ 23 ]]
[[ string->unsigned char ][ !!! *7* !!! ][ 113 ][ 25 ][ 25 ]]
[[ int->string ][ !!! *11* !!! ][ 183 ][ 47 ][ 40 ]]
[[ short->string ][ !!! *14* !!! ][ 153 ][ 35 ][ 23 ]]
[[ long int->string ][ !!! *12* !!! ][ 135 ][ 32 ][ 22 ]]
[[ long long->string ][ !!! *11* !!! ][ 131 ][ 30 ][ 24 ]]
[[ unsigned int->string ][ !!! *12* !!! ][ 137 ][ 31 ][ 22 ]]
[[ unsigned short->string ][ !!! *11* !!! ][ 137 ][ 33 ][ 22 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 136 ][ 36 ][ 23 ]]
[[ unsigned long long->string ][ !!! *11* !!! ][ 127 ][ 29 ][ 23 ]]
[[ float->string ][ 56 ][ 218 ][ 107 ][ !!! *44* !!! ]]
[[ double->string ][ 63 ][ 223 ][ 106 ][ !!! *44* !!! ]]
[[ long double->string ][ 69 ][ 229 ][ 118 ][ !!! *49* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 91 ][ 12 ][ 9 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 100 ][ 11 ][ 11 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 97 ][ 12 ][ 10 ]]
[[ char*->int ][ !!! *7* !!! ][ 112 ][ 23 ][ 16 ]]
[[ char*->short ][ !!! *6* !!! ][ 116 ][ 23 ][ 16 ]]
[[ char*->long int ][ !!! *8* !!! ][ 113 ][ 23 ][ 16 ]]
[[ char*->long long ][ !!! *8* !!! ][ 122 ][ 28 ][ 16 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 117 ][ 21 ][ 15 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 113 ][ 21 ][ 16 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 118 ][ 22 ][ 16 ]]
[[ char*->unsigned long long ][ !!! *8* !!! ][ 113 ][ 22 ][ 17 ]]
[[ char*->float ][ !!! *11* !!! ][ 164 ][ 67 ][ 34 ]]
[[ char*->double ][ !!! *13* !!! ][ 163 ][ 66 ][ 35 ]]
[[ char*->long double ][ 110 ][ 164 ][ 63 ][ !!! *39* !!! ]]
[[ char*->string ][ !!! *8* !!! ][ 130 ][ 30 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 113 ][ 24 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 10 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 97 ][ 12 ][ 10 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 97 ][ 11 ][ 10 ]]
[[ unsigned char*->int ][ !!! *7* !!! ][ 112 ][ 23 ][ 16 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 115 ][ 22 ][ 20 ]]
[[ unsigned char*->long int ][ !!! *8* !!! ][ 112 ][ 23 ][ 15 ]]
[[ unsigned char*->long long ][ !!! *8* !!! ][ 115 ][ 29 ][ 17 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *7* !!! ][ 112 ][ 22 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *7* !!! ][ 115 ][ 23 ][ 14 ]]
[[ unsigned char*->unsigned long long ][ !!! *8* !!! ][ 112 ][ 24 ][ 15 ]]
[[ unsigned char*->float ][ !!! *12* !!! ][ 161 ][ 66 ][ 34 ]]
[[ unsigned char*->double ][ !!! *13* !!! ][ 162 ][ 66 ][ 36 ]]
[[ unsigned char*->long double ][ 112 ][ 161 ][ 63 ][ !!! *39* !!! ]]
[[ unsigned char*->string ][ !!! *9* !!! ][ 127 ][ 29 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *4* !!! ][ 111 ][ 25 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 104 ][ 11 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 11 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 98 ][ 11 ][ 11 ]]
[[ signed char*->int ][ !!! *7* !!! ][ 112 ][ 23 ][ 16 ]]
[[ signed char*->short ][ !!! *7* !!! ][ 113 ][ 23 ][ 15 ]]
[[ signed char*->long int ][ !!! *8* !!! ][ 112 ][ 22 ][ 14 ]]
[[ signed char*->long long ][ !!! *8* !!! ][ 115 ][ 25 ][ 16 ]]
[[ signed char*->unsigned int ][ !!! *8* !!! ][ 114 ][ 21 ][ 18 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 112 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long int ][ !!! *8* !!! ][ 116 ][ 22 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *8* !!! ][ 113 ][ 23 ][ 16 ]]
[[ signed char*->float ][ !!! *13* !!! ][ 161 ][ 65 ][ 34 ]]
[[ signed char*->double ][ !!! *12* !!! ][ 172 ][ 67 ][ 34 ]]
[[ signed char*->long double ][ 110 ][ 164 ][ 63 ][ !!! *38* !!! ]]
[[ signed char*->string ][ !!! *9* !!! ][ 131 ][ 30 ][ --- ]]
[[ signed char*->container::string ][ !!! *4* !!! ][ 112 ][ 24 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 103 ][ 12 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 101 ][ 13 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 103 ][ 13 ][ 10 ]]
[[ iterator_range<char*>->int ][ !!! *7* !!! ][ 113 ][ 26 ][ 14 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 115 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 115 ][ 22 ][ 15 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 116 ][ 25 ][ 16 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 115 ][ 24 ][ 23 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 113 ][ 22 ][ 16 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *7* !!! ][ 117 ][ 20 ][ 16 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 114 ][ 21 ][ 16 ]]
[[ iterator_range<char*>->float ][ !!! *11* !!! ][ 145 ][ 51 ][ 34 ]]
[[ iterator_range<char*>->double ][ !!! *11* !!! ][ 139 ][ 53 ][ 35 ]]
[[ iterator_range<char*>->long double ][ 109 ][ 147 ][ 44 ][ !!! *38* !!! ]]
[[ iterator_range<char*>->string ][ !!! *9* !!! ][ 123 ][ 36 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *3* !!! ][ 113 ][ 20 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 117 ][ 23 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 262 ][ 150 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 97 ][ 9 ][ --- ]]
]
[endsect]
[section gcc-4.6][table:id Performance Table (gcc-4.6)
[section GNU C++ version 4.4.6]
[table:id Performance Table ( GNU C++ version 4.4.6)
[[From->To] [lexical_cast] [std::stringstream with construction] [std::stringstream without construction][scanf/printf]]
[[ string->char ][ !!! *<1* !!! ][ 94 ][ 8 ][ 7 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 96 ][ 9 ][ 7 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 96 ][ 8 ][ 13 ]]
[[ string->int ][ !!! *3* !!! ][ 110 ][ 18 ][ 16 ]]
[[ string->short ][ !!! *3* !!! ][ 111 ][ 18 ][ 16 ]]
[[ string->long int ][ !!! *3* !!! ][ 109 ][ 18 ][ 15 ]]
[[ string->long long ][ !!! *3* !!! ][ 111 ][ 18 ][ 15 ]]
[[ string->unsigned int ][ !!! *3* !!! ][ 110 ][ 20 ][ 15 ]]
[[ string->unsigned short ][ !!! *3* !!! ][ 111 ][ 18 ][ 15 ]]
[[ string->unsigned long int ][ !!! *3* !!! ][ 109 ][ 18 ][ 15 ]]
[[ string->unsigned long long ][ !!! *3* !!! ][ 114 ][ 19 ][ 15 ]]
[[ string->bool ][ !!! *<1* !!! ][ 106 ][ 17 ][ 8 ]]
[[ string->float ][ !!! *13* !!! ][ 175 ][ 70 ][ 33 ]]
[[ string->double ][ !!! *14* !!! ][ 182 ][ 81 ][ 58 ]]
[[ string->long double ][ 118 ][ 190 ][ 87 ][ !!! *58* !!! ]]
[[ char->string ][ !!! *8* !!! ][ 118 ][ 21 ][ 12 ]]
[[ unsigned char->string ][ !!! *8* !!! ][ 109 ][ 18 ][ 16 ]]
[[ signed char->string ][ !!! *8* !!! ][ 108 ][ 18 ][ 12 ]]
[[ int->string ][ 20 ][ 121 ][ 21 ][ !!! *16* !!! ]]
[[ short->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 17 ]]
[[ long int->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 16 ]]
[[ long long->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 17 ]]
[[ unsigned int->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 16 ]]
[[ unsigned short->string ][ !!! *15* !!! ][ 120 ][ 22 ][ 18 ]]
[[ unsigned long int->string ][ 16 ][ 118 ][ 22 ][ !!! *15* !!! ]]
[[ unsigned long long->string ][ !!! *15* !!! ][ 117 ][ 21 ][ 17 ]]
[[ bool->string ][ !!! *8* !!! ][ 117 ][ 23 ][ 10 ]]
[[ float->string ][ 77 ][ 218 ][ 105 ][ !!! *50* !!! ]]
[[ double->string ][ 108 ][ 247 ][ 129 ][ !!! *73* !!! ]]
[[ long double->string ][ 120 ][ 250 ][ 131 ][ !!! *79* !!! ]]
[[ char*->char ][ !!! *2* !!! ][ 99 ][ 9 ][ 7 ]]
[[ char*->signed char ][ !!! *2* !!! ][ 98 ][ 9 ][ 8 ]]
[[ char*->unsigned char ][ !!! *2* !!! ][ 98 ][ 9 ][ 13 ]]
[[ char*->int ][ !!! *6* !!! ][ 115 ][ 22 ][ 15 ]]
[[ char*->short ][ !!! *6* !!! ][ 114 ][ 22 ][ 15 ]]
[[ char*->long int ][ !!! *6* !!! ][ 114 ][ 22 ][ 16 ]]
[[ char*->long long ][ !!! *6* !!! ][ 119 ][ 22 ][ 15 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 114 ][ 20 ][ 15 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 116 ][ 20 ][ 15 ]]
[[ char*->unsigned long int ][ !!! *6* !!! ][ 117 ][ 22 ][ 15 ]]
[[ char*->unsigned long long ][ !!! *6* !!! ][ 118 ][ 22 ][ 15 ]]
[[ char*->bool ][ !!! *3* !!! ][ 113 ][ 18 ][ 8 ]]
[[ char*->float ][ !!! *15* !!! ][ 180 ][ 78 ][ 32 ]]
[[ char*->double ][ !!! *16* !!! ][ 185 ][ 89 ][ 58 ]]
[[ char*->long double ][ 119 ][ 193 ][ 91 ][ !!! *60* !!! ]]
[[ unsigned char*->char ][ !!! *2* !!! ][ 99 ][ 9 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *2* !!! ][ 99 ][ 10 ][ 8 ]]
[[ unsigned char*->unsigned char ][ !!! *2* !!! ][ 100 ][ 9 ][ 15 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 118 ][ 22 ][ 15 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 117 ][ 26 ][ 15 ]]
[[ unsigned char*->long int ][ !!! *6* !!! ][ 119 ][ 21 ][ 15 ]]
[[ unsigned char*->long long ][ !!! *6* !!! ][ 118 ][ 21 ][ 14 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 115 ][ 22 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 117 ][ 20 ][ 15 ]]
[[ unsigned char*->unsigned long int ][ !!! *6* !!! ][ 115 ][ 21 ][ 15 ]]
[[ unsigned char*->unsigned long long ][ !!! *6* !!! ][ 117 ][ 22 ][ 15 ]]
[[ unsigned char*->bool ][ !!! *3* !!! ][ 112 ][ 18 ][ 8 ]]
[[ unsigned char*->float ][ !!! *15* !!! ][ 181 ][ 78 ][ 33 ]]
[[ unsigned char*->double ][ !!! *16* !!! ][ 185 ][ 92 ][ 59 ]]
[[ unsigned char*->long double ][ 120 ][ 190 ][ 89 ][ !!! *58* !!! ]]
[[ unsigned char*->string ][ !!! *14* !!! ][ 121 ][ 22 ][ --- ]]
[[ signed char*->char ][ !!! *2* !!! ][ 99 ][ 9 ][ 9 ]]
[[ signed char*->signed char ][ !!! *2* !!! ][ 98 ][ 9 ][ 8 ]]
[[ signed char*->unsigned char ][ !!! *2* !!! ][ 98 ][ 9 ][ 14 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 119 ][ 22 ][ 16 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 115 ][ 22 ][ 15 ]]
[[ signed char*->long int ][ !!! *6* !!! ][ 119 ][ 22 ][ 15 ]]
[[ signed char*->long long ][ !!! *6* !!! ][ 117 ][ 22 ][ 15 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 117 ][ 23 ][ 15 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 117 ][ 21 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *7* !!! ][ 119 ][ 24 ][ 15 ]]
[[ signed char*->unsigned long long ][ !!! *6* !!! ][ 116 ][ 22 ][ 15 ]]
[[ signed char*->bool ][ !!! *3* !!! ][ 111 ][ 18 ][ 8 ]]
[[ signed char*->float ][ !!! *16* !!! ][ 180 ][ 78 ][ 33 ]]
[[ signed char*->double ][ !!! *16* !!! ][ 185 ][ 89 ][ 59 ]]
[[ signed char*->long double ][ 120 ][ 191 ][ 91 ][ !!! *59* !!! ]]
[[ signed char*->string ][ !!! *14* !!! ][ 122 ][ 23 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 120 ][ 22 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 242 ][ 115 ][ --- ]]
[[ double->double ][ !!! *<1* !!! ][ 243 ][ 115 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 265 ][ 141 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 266 ][ 140 ][ --- ]]
[[ char->unsigned char ][ !!! *<1* !!! ][ 95 ][ 8 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 95 ][ 8 ][ --- ]]
[[ unsigned char->char ][ !!! *<1* !!! ][ 94 ][ 8 ][ --- ]]
[[ signed char->char ][ !!! *<1* !!! ][ 94 ][ 8 ][ --- ]]
[[ string->char ][ !!! *<1* !!! ][ 162 ][ 17 ][ 8 ]]
[[ string->signed char ][ !!! *<1* !!! ][ 103 ][ 9 ][ 9 ]]
[[ string->unsigned char ][ !!! *<1* !!! ][ 91 ][ 9 ][ 9 ]]
[[ string->int ][ !!! *6* !!! ][ 104 ][ 21 ][ 14 ]]
[[ string->short ][ !!! *5* !!! ][ 107 ][ 22 ][ 14 ]]
[[ string->long int ][ !!! *7* !!! ][ 106 ][ 23 ][ 15 ]]
[[ string->long long ][ !!! *7* !!! ][ 104 ][ 21 ][ 16 ]]
[[ string->unsigned int ][ !!! *6* !!! ][ 100 ][ 20 ][ 16 ]]
[[ string->unsigned short ][ !!! *5* !!! ][ 102 ][ 20 ][ 16 ]]
[[ string->unsigned long int ][ !!! *7* !!! ][ 106 ][ 25 ][ 16 ]]
[[ string->unsigned long long ][ !!! *7* !!! ][ 109 ][ 25 ][ 14 ]]
[[ string->float ][ !!! *13* !!! ][ 142 ][ 48 ][ 32 ]]
[[ string->double ][ !!! *13* !!! ][ 162 ][ 62 ][ 33 ]]
[[ string->long double ][ 119 ][ 164 ][ 62 ][ !!! *37* !!! ]]
[[ string->string ][ !!! *2* !!! ][ 122 ][ 27 ][ --- ]]
[[ string->container::string ][ !!! *2* !!! ][ 107 ][ 23 ][ --- ]]
[[ string->char ][ !!! *6* !!! ][ 110 ][ 24 ][ 15 ]]
[[ string->signed char ][ !!! *6* !!! ][ 107 ][ 24 ][ 21 ]]
[[ string->unsigned char ][ !!! *6* !!! ][ 106 ][ 27 ][ 21 ]]
[[ int->string ][ !!! *12* !!! ][ 122 ][ 31 ][ 21 ]]
[[ short->string ][ !!! *12* !!! ][ 136 ][ 29 ][ 20 ]]
[[ long int->string ][ !!! *12* !!! ][ 127 ][ 32 ][ 19 ]]
[[ long long->string ][ !!! *12* !!! ][ 121 ][ 32 ][ 21 ]]
[[ unsigned int->string ][ !!! *12* !!! ][ 133 ][ 32 ][ 19 ]]
[[ unsigned short->string ][ !!! *12* !!! ][ 126 ][ 33 ][ 20 ]]
[[ unsigned long int->string ][ !!! *11* !!! ][ 126 ][ 34 ][ 19 ]]
[[ unsigned long long->string ][ !!! *12* !!! ][ 125 ][ 28 ][ 21 ]]
[[ float->string ][ 47 ][ 183 ][ 86 ][ !!! *43* !!! ]]
[[ double->string ][ 57 ][ 184 ][ 90 ][ !!! *42* !!! ]]
[[ long double->string ][ 64 ][ 199 ][ 87 ][ !!! *46* !!! ]]
[[ char*->char ][ !!! *<1* !!! ][ 95 ][ 10 ][ 8 ]]
[[ char*->signed char ][ !!! *<1* !!! ][ 90 ][ 12 ][ 9 ]]
[[ char*->unsigned char ][ !!! *<1* !!! ][ 93 ][ 12 ][ 9 ]]
[[ char*->int ][ !!! *6* !!! ][ 108 ][ 24 ][ 14 ]]
[[ char*->short ][ !!! *6* !!! ][ 106 ][ 23 ][ 14 ]]
[[ char*->long int ][ !!! *7* !!! ][ 107 ][ 24 ][ 17 ]]
[[ char*->long long ][ !!! *7* !!! ][ 109 ][ 25 ][ 17 ]]
[[ char*->unsigned int ][ !!! *6* !!! ][ 104 ][ 23 ][ 17 ]]
[[ char*->unsigned short ][ !!! *6* !!! ][ 102 ][ 22 ][ 17 ]]
[[ char*->unsigned long int ][ !!! *7* !!! ][ 107 ][ 23 ][ 17 ]]
[[ char*->unsigned long long ][ !!! *7* !!! ][ 115 ][ 26 ][ 14 ]]
[[ char*->float ][ !!! *12* !!! ][ 150 ][ 56 ][ 30 ]]
[[ char*->double ][ !!! *12* !!! ][ 165 ][ 66 ][ 32 ]]
[[ char*->long double ][ 116 ][ 173 ][ 66 ][ !!! *37* !!! ]]
[[ char*->string ][ !!! *7* !!! ][ 120 ][ 28 ][ --- ]]
[[ char*->container::string ][ !!! *2* !!! ][ 108 ][ 26 ][ --- ]]
[[ unsigned char*->char ][ !!! *<1* !!! ][ 90 ][ 12 ][ 8 ]]
[[ unsigned char*->signed char ][ !!! *<1* !!! ][ 91 ][ 11 ][ 9 ]]
[[ unsigned char*->unsigned char ][ !!! *<1* !!! ][ 91 ][ 12 ][ 9 ]]
[[ unsigned char*->int ][ !!! *6* !!! ][ 106 ][ 24 ][ 14 ]]
[[ unsigned char*->short ][ !!! *6* !!! ][ 108 ][ 24 ][ 14 ]]
[[ unsigned char*->long int ][ !!! *7* !!! ][ 116 ][ 23 ][ 14 ]]
[[ unsigned char*->long long ][ !!! *7* !!! ][ 108 ][ 28 ][ 14 ]]
[[ unsigned char*->unsigned int ][ !!! *6* !!! ][ 107 ][ 22 ][ 14 ]]
[[ unsigned char*->unsigned short ][ !!! *6* !!! ][ 105 ][ 21 ][ 16 ]]
[[ unsigned char*->unsigned long int ][ !!! *7* !!! ][ 106 ][ 25 ][ 16 ]]
[[ unsigned char*->unsigned long long ][ !!! *7* !!! ][ 105 ][ 24 ][ 17 ]]
[[ unsigned char*->float ][ !!! *14* !!! ][ 150 ][ 57 ][ 33 ]]
[[ unsigned char*->double ][ !!! *14* !!! ][ 171 ][ 72 ][ 34 ]]
[[ unsigned char*->long double ][ 118 ][ 171 ][ 73 ][ !!! *38* !!! ]]
[[ unsigned char*->string ][ !!! *8* !!! ][ 120 ][ 29 ][ --- ]]
[[ unsigned char*->container::string ][ !!! *3* !!! ][ 114 ][ 26 ][ --- ]]
[[ signed char*->char ][ !!! *<1* !!! ][ 92 ][ 12 ][ 8 ]]
[[ signed char*->signed char ][ !!! *<1* !!! ][ 92 ][ 12 ][ 9 ]]
[[ signed char*->unsigned char ][ !!! *<1* !!! ][ 91 ][ 14 ][ 9 ]]
[[ signed char*->int ][ !!! *6* !!! ][ 109 ][ 22 ][ 15 ]]
[[ signed char*->short ][ !!! *6* !!! ][ 106 ][ 24 ][ 17 ]]
[[ signed char*->long int ][ !!! *7* !!! ][ 107 ][ 24 ][ 16 ]]
[[ signed char*->long long ][ !!! *7* !!! ][ 106 ][ 24 ][ 14 ]]
[[ signed char*->unsigned int ][ !!! *6* !!! ][ 106 ][ 22 ][ 14 ]]
[[ signed char*->unsigned short ][ !!! *6* !!! ][ 104 ][ 20 ][ 14 ]]
[[ signed char*->unsigned long int ][ !!! *7* !!! ][ 105 ][ 22 ][ 16 ]]
[[ signed char*->unsigned long long ][ !!! *7* !!! ][ 108 ][ 24 ][ 15 ]]
[[ signed char*->float ][ !!! *14* !!! ][ 147 ][ 54 ][ 32 ]]
[[ signed char*->double ][ !!! *14* !!! ][ 170 ][ 68 ][ 37 ]]
[[ signed char*->long double ][ 133 ][ 167 ][ 66 ][ !!! *37* !!! ]]
[[ signed char*->string ][ !!! *8* !!! ][ 119 ][ 30 ][ --- ]]
[[ signed char*->container::string ][ !!! *3* !!! ][ 108 ][ 24 ][ --- ]]
[[ iterator_range<char*>->char ][ !!! *<1* !!! ][ 98 ][ 13 ][ 8 ]]
[[ iterator_range<char*>->signed char ][ !!! *<1* !!! ][ 98 ][ 15 ][ 9 ]]
[[ iterator_range<char*>->unsigned char ][ !!! *<1* !!! ][ 97 ][ 15 ][ 9 ]]
[[ iterator_range<char*>->int ][ !!! *6* !!! ][ 107 ][ 27 ][ 14 ]]
[[ iterator_range<char*>->short ][ !!! *5* !!! ][ 109 ][ 23 ][ 14 ]]
[[ iterator_range<char*>->long int ][ !!! *7* !!! ][ 109 ][ 22 ][ 14 ]]
[[ iterator_range<char*>->long long ][ !!! *7* !!! ][ 107 ][ 24 ][ 14 ]]
[[ iterator_range<char*>->unsigned int ][ !!! *6* !!! ][ 120 ][ 23 ][ 14 ]]
[[ iterator_range<char*>->unsigned short ][ !!! *5* !!! ][ 104 ][ 21 ][ 17 ]]
[[ iterator_range<char*>->unsigned long int ][ !!! *8* !!! ][ 108 ][ 25 ][ 16 ]]
[[ iterator_range<char*>->unsigned long long ][ !!! *7* !!! ][ 106 ][ 25 ][ 15 ]]
[[ iterator_range<char*>->float ][ !!! *13* !!! ][ 132 ][ 41 ][ 32 ]]
[[ iterator_range<char*>->double ][ !!! *12* !!! ][ 136 ][ 45 ][ 32 ]]
[[ iterator_range<char*>->long double ][ 113 ][ 138 ][ 50 ][ !!! *36* !!! ]]
[[ iterator_range<char*>->string ][ !!! *7* !!! ][ 114 ][ 33 ][ --- ]]
[[ iterator_range<char*>->container::string ][ !!! *2* !!! ][ 105 ][ 24 ][ --- ]]
[[ int->int ][ !!! *<1* !!! ][ 112 ][ 31 ][ --- ]]
[[ float->double ][ !!! *<1* !!! ][ 233 ][ 199 ][ --- ]]
[[ char->signed char ][ !!! *<1* !!! ][ 129 ][ 10 ][ --- ]]
]
[endsect]

View File

@@ -72,6 +72,7 @@ _CRTIMP int __cdecl vswprintf(wchar_t * __restrict__ , const wchar_t * __restric
#include <boost/static_assert.hpp>
#include <boost/detail/lcast_precision.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/range/iterator_range_core.hpp>
#if !defined(__SUNPRO_CC)
#include <boost/container/container_fwd.hpp>
#endif // !defined(__SUNPRO_CC)
@@ -166,6 +167,18 @@ namespace boost
};
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
template<typename CharT>
struct stream_char<iterator_range<CharT*> >
{
typedef BOOST_DEDUCED_TYPENAME stream_char<CharT>::type type;
};
template<typename CharT>
struct stream_char<iterator_range<const CharT*> >
{
typedef BOOST_DEDUCED_TYPENAME stream_char<CharT>::type type;
};
template<class CharT, class Traits, class Alloc>
struct stream_char< std::basic_string<CharT,Traits,Alloc> >
{
@@ -1225,7 +1238,7 @@ namespace boost
bool shl_char(T ch)
{
BOOST_STATIC_ASSERT_MSG(( sizeof(T) <= sizeof(CharT)) ,
"boost::lexical_cast does not support conversions from whar_t to char types."
"boost::lexical_cast does not support conversions from wchar_t to char types."
"Use boost::locale instead" );
#ifndef BOOST_LEXICAL_CAST_ASSUME_C_LOCALE
std::locale loc;
@@ -1397,6 +1410,52 @@ namespace boost
return true;
}
bool operator<<(const iterator_range<CharT*>& rng)
{
start = rng.begin();
finish = rng.end();
return true;
}
bool operator<<(const iterator_range<const CharT*>& rng)
{
start = const_cast<CharT*>(rng.begin());
finish = const_cast<CharT*>(rng.end());
return true;
}
bool operator<<(const iterator_range<const signed char*>& rng)
{
return (*this) << iterator_range<char*>(
const_cast<char*>(reinterpret_cast<const char*>(rng.begin())),
const_cast<char*>(reinterpret_cast<const char*>(rng.end()))
);
}
bool operator<<(const iterator_range<const unsigned char*>& rng)
{
return (*this) << iterator_range<char*>(
const_cast<char*>(reinterpret_cast<const char*>(rng.begin())),
const_cast<char*>(reinterpret_cast<const char*>(rng.end()))
);
}
bool operator<<(const iterator_range<signed char*>& rng)
{
return (*this) << iterator_range<char*>(
reinterpret_cast<char*>(rng.begin()),
reinterpret_cast<char*>(rng.end())
);
}
bool operator<<(const iterator_range<unsigned char*>& rng)
{
return (*this) << iterator_range<char*>(
reinterpret_cast<char*>(rng.begin()),
reinterpret_cast<char*>(rng.end())
);
}
bool operator<<(char ch) { return shl_char(ch); }
bool operator<<(unsigned char ch) { return ((*this) << static_cast<char>(ch)); }
bool operator<<(signed char ch) { return ((*this) << static_cast<char>(ch)); }
@@ -1572,7 +1631,7 @@ namespace boost
inline bool shr_xchar(T& output)
{
BOOST_STATIC_ASSERT_MSG(( sizeof(CharT) == sizeof(T) ),
"boost::lexical_cast does not support conversions from whar_t to char types."
"boost::lexical_cast does not support conversions from wchar_t to char types."
"Use boost::locale instead" );
bool const ok = (finish - start == 1);
if(ok) {
@@ -1801,6 +1860,24 @@ namespace boost
);
};
template <typename T>
struct is_char_iterator_range
{
BOOST_STATIC_CONSTANT(bool, value = false );
};
template <typename CharT>
struct is_char_iterator_range<iterator_range<CharT*> >
{
BOOST_STATIC_CONSTANT(bool, value = (is_char_or_wchar<CharT>::value) );
};
template <typename CharT>
struct is_char_iterator_range<iterator_range<const CharT*> >
{
BOOST_STATIC_CONSTANT(bool, value = (is_char_or_wchar<CharT>::value) );
};
template<typename Target, typename Source>
struct is_arithmetic_and_not_xchars
{
@@ -1889,10 +1966,10 @@ namespace boost
static inline Target lexical_cast_impl(const Source& arg)
{
typedef BOOST_DEDUCED_TYPENAME detail::array_to_pointer_decay<Source>::type src;
typedef BOOST_DEDUCED_TYPENAME detail::stream_char<Target>::type target_char_t;
typedef BOOST_DEDUCED_TYPENAME detail::stream_char<src>::type src_char_type;
typedef BOOST_DEDUCED_TYPENAME detail::widest_char<
BOOST_DEDUCED_TYPENAME detail::stream_char<Target>::type
, BOOST_DEDUCED_TYPENAME detail::stream_char<src>::type
target_char_t, src_char_type
>::type char_type;
typedef detail::lcast_src_length<src> lcast_src_length;
@@ -1903,7 +1980,8 @@ namespace boost
typedef BOOST_DEDUCED_TYPENAME
deduce_char_traits<char_type,Target,Source>::type traits;
typedef BOOST_DEDUCED_TYPENAME remove_pointer<src >::type removed_ptr_t;
typedef BOOST_DEDUCED_TYPENAME remove_pointer<src>::type removed_ptr_t_1;
typedef BOOST_DEDUCED_TYPENAME remove_cv<removed_ptr_t_1>::type removed_ptr_t;
// is_char_types_match variable value can be computed via
// sizeof(char_type) == sizeof(removed_ptr_t). But when
@@ -1914,12 +1992,12 @@ namespace boost
::boost::type_traits::ice_and<
::boost::type_traits::ice_eq<sizeof(char_type), sizeof(char) >::value,
::boost::type_traits::ice_or<
::boost::is_same<char, removed_ptr_t>::value,
::boost::is_same<unsigned char, removed_ptr_t>::value,
::boost::is_same<signed char, removed_ptr_t>::value
::boost::is_same<char, src_char_type>::value,
::boost::is_same<unsigned char, src_char_type>::value,
::boost::is_same<signed char, src_char_type>::value
>::value
>::value,
is_same<char_type, removed_ptr_t>::value
is_same<char_type, src_char_type>::value
>::value);
const bool requires_stringbuf =
@@ -1928,14 +2006,18 @@ namespace boost
is_stdstring<src >::value,
is_arithmetic<src >::value,
::boost::type_traits::ice_and<
is_pointer<src >::value,
is_char_or_wchar<removed_ptr_t >::value,
is_char_iterator_range<src >::value,
is_char_types_match
>::value,
::boost::type_traits::ice_and<
is_pointer<src>::value,
is_char_or_wchar<removed_ptr_t>::value,
is_char_types_match
>::value
>::value
);
detail::lexical_stream_limited_src<char_type,traits, requires_stringbuf >
detail::lexical_stream_limited_src<char_type, traits, requires_stringbuf >
interpreter(buf, buf + src_len);
Target result;

View File

@@ -15,6 +15,7 @@
#include <boost/lexical_cast.hpp>
#include <boost/chrono.hpp>
#include <fstream>
#include <cstring>
#include <boost/container/string.hpp>
// File to output data
@@ -74,6 +75,12 @@ struct structure_sscanf {
OutT out_val;
sscanf(in_val.c_str(), conv, &out_val);
}
template <class OutT, class BufferT>
static inline void test(BufferT* /*buffer*/, const boost::iterator_range<const char*>& in_val, const char* const conv) {
OutT out_val;
sscanf(in_val.begin(), conv, &out_val);
}
};
struct structure_fake {
@@ -255,6 +262,12 @@ struct to_schar_conv {
}
};
struct to_iterator_range {
boost::iterator_range<const char*> operator()(const char* const c) const {
return boost::make_iterator_range(c, c + std::strlen(c));
}
};
int main(int argc, char** argv) {
BOOST_ASSERT(argc >= 2);
std::string output_path(argv[1]);
@@ -296,11 +309,13 @@ int main(int argc, char** argv) {
string_like_test_set<to_char_conv>("char*");
string_like_test_set<to_uchar_conv>("unsigned char*");
string_like_test_set<to_schar_conv>("signed char*");
string_like_test_set<to_iterator_range>("iterator_range<char*>");
perf_test<int, structure_fake>("int->int", 100, "");
perf_test<double, structure_fake>("float->double", 100.0f, "");
perf_test<signed char, structure_fake>("char->signed char", 'c', "");
fout << "]\n"
<< "[endsect]\n\n";
return 0;

View File

@@ -45,5 +45,6 @@ test-suite conversion
<toolset>gcc-4.5:<cflags>-fno-exceptions
<toolset>gcc-4.6:<cflags>-fno-exceptions
]
[ run lexical_cast_iterator_range_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
;

View File

@@ -0,0 +1,189 @@
// Unit test for boost::lexical_cast.
//
// See http://www.boost.org for most recent version, including documentation.
//
// Copyright Antony Polukhin, 2012.
//
// Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
#include <boost/config.hpp>
#if defined(__INTEL_COMPILER)
#pragma warning(disable: 193 383 488 981 1418 1419)
#elif defined(BOOST_MSVC)
#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
#endif
#include <boost/lexical_cast.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/range/iterator_range.hpp>
using namespace boost;
#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
#define BOOST_LCAST_NO_WCHAR_T
#endif
struct class_with_user_defined_sream_operators {
int i;
operator int() const {
return i;
}
};
template <class CharT>
inline std::basic_istream<CharT>& operator >> (std::basic_istream<CharT>& istr, class_with_user_defined_sream_operators& rhs)
{
return istr >> rhs.i;
}
template <class RngT>
void do_test_iterator_range(const RngT& rng)
{
BOOST_CHECK_EQUAL(lexical_cast<int>(rng), 1);
BOOST_CHECK_EQUAL(lexical_cast<unsigned int>(rng), 1u);
BOOST_CHECK_EQUAL(lexical_cast<short>(rng), 1);
BOOST_CHECK_EQUAL(lexical_cast<unsigned short>(rng), 1u);
BOOST_CHECK_EQUAL(lexical_cast<long int>(rng), 1);
BOOST_CHECK_EQUAL(lexical_cast<unsigned long int>(rng), 1u);
BOOST_CHECK_EQUAL(lexical_cast<float>(rng), 1.0f);
BOOST_CHECK_EQUAL(lexical_cast<double>(rng), 1.0);
BOOST_CHECK_EQUAL(lexical_cast<long double>(rng), 1.0L);
BOOST_CHECK_EQUAL(lexical_cast<class_with_user_defined_sream_operators>(rng), 1);
#if defined(BOOST_HAS_LONG_LONG)
BOOST_CHECK_EQUAL(lexical_cast<boost::ulong_long_type>(rng), 1u);
BOOST_CHECK_EQUAL(lexical_cast<boost::long_long_type>(rng), 1);
#elif defined(BOOST_HAS_MS_INT64)
BOOST_CHECK_EQUAL(lexical_cast<unsigned __int64>(rng), 1u);
BOOST_CHECK_EQUAL(lexical_cast<__int64>(rng), 1);
#endif
#ifndef BOOST_LCAST_NO_WCHAR_T
BOOST_CHECK(lexical_cast<std::wstring>(rng) == L"1");
#endif
}
void test_char_iterator_ranges()
{
typedef char test_char_type;
// Zero terminated
test_char_type data1[] = "1";
iterator_range<test_char_type*> rng1(data1, data1 + 1);
do_test_iterator_range(rng1);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(rng1), "1");
const test_char_type cdata1[] = "1";
iterator_range<const test_char_type*> crng1(cdata1, cdata1 + 1);
do_test_iterator_range(crng1);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(crng1), "1");
// Non zero terminated
test_char_type data2[] = "11";
iterator_range<test_char_type*> rng2(data2, data2 + 1);
do_test_iterator_range(rng2);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(rng2), "1");
const test_char_type cdata2[] = "11";
iterator_range<const test_char_type*> crng2(cdata2, cdata2 + 1);
do_test_iterator_range(crng2);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(crng2), "1");
}
void test_unsigned_char_iterator_ranges()
{
typedef unsigned char test_char_type;
// Zero terminated
test_char_type data1[] = "1";
iterator_range<test_char_type*> rng1(data1, data1 + 1);
do_test_iterator_range(rng1);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(rng1), "1");
const test_char_type cdata1[] = "1";
iterator_range<const test_char_type*> crng1(cdata1, cdata1 + 1);
do_test_iterator_range(crng1);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(crng1), "1");
// Non zero terminated
test_char_type data2[] = "11";
iterator_range<test_char_type*> rng2(data2, data2 + 1);
do_test_iterator_range(rng2);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(rng2), "1");
const test_char_type cdata2[] = "11";
iterator_range<const test_char_type*> crng2(cdata2, cdata2 + 1);
do_test_iterator_range(crng2);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(crng2), "1");
}
void test_signed_char_iterator_ranges()
{
typedef signed char test_char_type;
// Zero terminated
test_char_type data1[] = "1";
iterator_range<test_char_type*> rng1(data1, data1 + 1);
do_test_iterator_range(rng1);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(rng1), "1");
const test_char_type cdata1[] = "1";
iterator_range<const test_char_type*> crng1(cdata1, cdata1 + 1);
do_test_iterator_range(crng1);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(crng1), "1");
// Non zero terminated
test_char_type data2[] = "11";
iterator_range<test_char_type*> rng2(data2, data2 + 1);
do_test_iterator_range(rng2);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(rng2), "1");
const test_char_type cdata2[] = "11";
iterator_range<const test_char_type*> crng2(cdata2, cdata2 + 1);
do_test_iterator_range(crng2);
BOOST_CHECK_EQUAL(lexical_cast<std::string>(crng2), "1");
}
void test_wide_char_iterator_ranges()
{
#ifndef BOOST_LCAST_NO_WCHAR_T
typedef wchar_t test_char_type;
// Zero terminated
test_char_type data1[] = L"1";
iterator_range<test_char_type*> rng1(data1, data1 + 1);
do_test_iterator_range(rng1);
const test_char_type cdata1[] = L"1";
iterator_range<const test_char_type*> crng1(cdata1, cdata1 + 1);
do_test_iterator_range(crng1);
// Non zero terminated
test_char_type data2[] = L"11";
iterator_range<test_char_type*> rng2(data2, data2 + 1);
do_test_iterator_range(rng2);
const test_char_type cdata2[] = L"11";
iterator_range<const test_char_type*> crng2(cdata2, cdata2 + 1);
do_test_iterator_range(crng2);
#endif
BOOST_CHECK(true);
}
unit_test::test_suite *init_unit_test_suite(int, char *[])
{
unit_test::test_suite *suite = BOOST_TEST_SUITE("lexical_cast. Testing conversions using iterator_range<>");
suite->add(BOOST_TEST_CASE(&test_char_iterator_ranges));
suite->add(BOOST_TEST_CASE(&test_unsigned_char_iterator_ranges));
suite->add(BOOST_TEST_CASE(&test_signed_char_iterator_ranges));
suite->add(BOOST_TEST_CASE(&test_wide_char_iterator_ranges));
return suite;
}