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Fixes #6663 (much more optimizations for iterator_range, updated documentation and performance test results)

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[SVN r77517]
This commit is contained in:
Antony Polukhin
2012-03-24 19:35:19 +00:00
parent 676bde6e1f
commit 76b9f29c12
5 changed files with 753 additions and 362 deletions
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perf/performance_test.cpp
+15
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@@ -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;