Release

[SVN r43921]

cast.htm

@@ -123,7 +123,7 @@ void f( Fruit * fruit ) {
     "http://www.boost.org/people/dave_abrahams.htm">Dave Abrahams</a>.<code><br>
      An old
      numeric_cast</code> that was contributed by <a href=
-    "http://www.boost.org/people/kevlin_henney.htm">Kevlin Henney</a> is now superseeded by the <a href="../numeric/conversion/doc/html/index.html">Boost Numeric Conversion Library</a></p>
+    "http://www.boost.org/people/kevlin_henney.htm">Kevlin Henney</a> is now superseeded by the <a href="../numeric/conversion/doc/index.html">Boost Numeric Conversion Library</a></p>
     <hr>
 
     <p>Revised

include/boost/lexical_cast.hpp

@@ -17,23 +17,17 @@
 #include <climits>
 #include <cstddef>
 #include <istream>
+#include <locale>
 #include <string>
 #include <typeinfo>
-#include <exception>
 #include <boost/config.hpp>
 #include <boost/limits.hpp>
 #include <boost/mpl/if.hpp>
 #include <boost/throw_exception.hpp>
 #include <boost/type_traits/is_pointer.hpp>
-#include <boost/type_traits/make_unsigned.hpp>
 #include <boost/call_traits.hpp>
 #include <boost/static_assert.hpp>
 #include <boost/detail/lcast_precision.hpp>
-#include <boost/detail/workaround.hpp>
-
-#ifndef BOOST_NO_STD_LOCALE
-#include <locale>
-#endif
 
 #ifdef BOOST_NO_STRINGSTREAM
 #include <strstream>
@@ -44,19 +38,13 @@
 #if defined(BOOST_NO_STRINGSTREAM) || \
     defined(BOOST_NO_STD_WSTRING) || \
     defined(BOOST_NO_STD_LOCALE) 
-#define BOOST_LCAST_NO_WCHAR_T
+#define DISABLE_WIDE_CHAR_SUPPORT
 #endif
 
 namespace boost
 {
     // exception used to indicate runtime lexical_cast failure
     class bad_lexical_cast : public std::bad_cast
-
-#if defined(__BORLANDC__) && BOOST_WORKAROUND( __BORLANDC__, < 0x560 )
-        // under bcc32 5.5.1 bad_cast doesn't derive from exception
-        , public std::exception
-#endif
-
     {
     public:
         bad_lexical_cast() :
@@ -106,7 +94,7 @@ namespace boost
         };
 #endif
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
 #ifndef BOOST_NO_INTRINSIC_WCHAR_T
         template<>
         struct stream_char<wchar_t>
@@ -231,7 +219,7 @@ namespace boost
         // lcast_src_length<char, signed char const*>
         // lcast_src_length<char, unsigned char const*>
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<>
         struct lcast_src_length<wchar_t, bool>
         {
@@ -270,7 +258,7 @@ namespace boost
             static void check_coverage() {}
         };
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<>
         struct lcast_src_length<wchar_t, wchar_t const*>
         {
@@ -301,7 +289,7 @@ namespace boost
             static void check_coverage() {}
         };
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<>
         struct lcast_src_length< wchar_t, std::basic_string<wchar_t> >
         {
@@ -339,35 +327,34 @@ namespace boost
 #endif
         };
 
-#define BOOST_LCAST_DEF1(CharT, T)               \
-    template<> struct lcast_src_length<CharT, T> \
-        : lcast_src_length_integral<T>           \
+#define BOOST_AUX_LEXICAL_CAST_DEF1(CharT, T) template<>             \
+    struct lcast_src_length<CharT, T> : lcast_src_length_integral<T> \
     { static void check_coverage() {} };
 
-#ifdef BOOST_LCAST_NO_WCHAR_T
-#define BOOST_LCAST_DEF(T) BOOST_LCAST_DEF1(char, T)
+#ifdef DISABLE_WIDE_CHAR_SUPPORT
+#define BOOST_AUX_LEXICAL_CAST_DEF(T) BOOST_AUX_LEXICAL_CAST_DEF1(char, T)
 #else
-#define BOOST_LCAST_DEF(T)          \
-        BOOST_LCAST_DEF1(char, T)   \
-        BOOST_LCAST_DEF1(wchar_t, T)
+#define BOOST_AUX_LEXICAL_CAST_DEF(T)          \
+        BOOST_AUX_LEXICAL_CAST_DEF1(char, T)   \
+        BOOST_AUX_LEXICAL_CAST_DEF1(wchar_t, T)
 #endif
 
-        BOOST_LCAST_DEF(short)
-        BOOST_LCAST_DEF(unsigned short)
-        BOOST_LCAST_DEF(int)
-        BOOST_LCAST_DEF(unsigned int)
-        BOOST_LCAST_DEF(long)
-        BOOST_LCAST_DEF(unsigned long)
+        BOOST_AUX_LEXICAL_CAST_DEF(short)
+        BOOST_AUX_LEXICAL_CAST_DEF(unsigned short)
+        BOOST_AUX_LEXICAL_CAST_DEF(int)
+        BOOST_AUX_LEXICAL_CAST_DEF(unsigned int)
+        BOOST_AUX_LEXICAL_CAST_DEF(long)
+        BOOST_AUX_LEXICAL_CAST_DEF(unsigned long)
 #if defined(BOOST_HAS_LONG_LONG)
-        BOOST_LCAST_DEF(boost::ulong_long_type)
-        BOOST_LCAST_DEF(boost::long_long_type )
+        BOOST_AUX_LEXICAL_CAST_DEF(boost::ulong_long_type)
+        BOOST_AUX_LEXICAL_CAST_DEF(boost::long_long_type )
 #elif defined(BOOST_HAS_MS_INT64)
-        BOOST_LCAST_DEF(unsigned __int64)
-        BOOST_LCAST_DEF(         __int64)
+        BOOST_AUX_LEXICAL_CAST_DEF(unsigned __int64)
+        BOOST_AUX_LEXICAL_CAST_DEF(         __int64)
 #endif
 
-#undef BOOST_LCAST_DEF
-#undef BOOST_LCAST_DEF1
+#undef BOOST_AUX_LEXICAL_CAST_DEF
+#undef BOOST_AUX_LEXICAL_CAST_DEF1
 
 #ifndef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
         // Helper for floating point types.
@@ -413,7 +400,7 @@ namespace boost
             static void check_coverage() {}
         };
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
     template<>
     struct lcast_src_length<wchar_t,float>
       : lcast_src_length_floating<float>
@@ -435,7 +422,7 @@ namespace boost
         static void check_coverage() {}
     };
 
-#endif // #ifndef BOOST_LCAST_NO_WCHAR_T
+#endif // #ifndef DISABLE_WIDE_CHAR_SUPPORT
 #endif // #ifndef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
     }
 
@@ -450,7 +437,7 @@ namespace boost
             BOOST_STATIC_CONSTANT(char, minus = '-');
         };
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<>
         struct lcast_char_constants<wchar_t>
         {
@@ -473,21 +460,37 @@ namespace boost
 # pragma warning( push )
 // C4146: unary minus operator applied to unsigned type, result still unsigned
 # pragma warning( disable : 4146 )
-#elif defined( __BORLANDC__ )
-# pragma option push -w-8041
 #endif
-        template<class T>
-        inline
-        BOOST_DEDUCED_TYPENAME make_unsigned<T>::type lcast_to_unsigned(T value)
+
+        inline unsigned int lcast_to_unsigned(int value)
         {
-            typedef BOOST_DEDUCED_TYPENAME make_unsigned<T>::type result_type;
-            result_type uvalue = static_cast<result_type>(value);
-            return value < 0 ? -uvalue : uvalue;
+            unsigned int uval = value;
+            return value < 0 ? -uval : uval;
         }
+
+        inline unsigned long lcast_to_unsigned(long value)
+        {
+            unsigned long uval = value;
+            return value < 0 ? -uval : uval;
+        }
+
+#if defined(BOOST_HAS_LONG_LONG)
+        inline boost::ulong_long_type lcast_to_unsigned(boost::long_long_type v)
+        {
+            boost::ulong_long_type uval = v;
+            return v < 0 ? -uval : uval;
+        }
+#elif defined(BOOST_HAS_MS_INT64)
+        inline unsigned __int64 lcast_to_unsigned(__int64 value)
+        {
+            unsigned __int64 uval = value;
+            return value < 0 ? -uval : uval;
+        }
+#endif
+
 #if (defined _MSC_VER)
-# pragma warning( pop )
-#elif defined( __BORLANDC__ )
-# pragma option pop
+# pragma warning( pop ) // C4146: unary minus operator applied to unsigned type,
+                        // result still unsigned
 #endif
     }
 
@@ -499,15 +502,22 @@ namespace boost
 #ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
             BOOST_STATIC_ASSERT(!std::numeric_limits<T>::is_signed);
 #endif
+            CharT thousands_sep = 0;
 
-#ifndef BOOST_LEXICAL_CAST_ASSUME_C_LOCALE
-            // TODO: use BOOST_NO_STD_LOCALE
+#ifdef BOOST_LEXICAL_CAST_ASSUME_C_LOCALE
+            char const* grouping = "";
+            std::size_t const grouping_size = 0;
+#else
             std::locale loc;
             typedef std::numpunct<CharT> numpunct;
             numpunct const& np = BOOST_USE_FACET(numpunct, loc);
             std::string const& grouping = np.grouping();
             std::string::size_type const grouping_size = grouping.size();
-            CharT thousands_sep = grouping_size ? np.thousands_sep() : 0;
+
+            if(grouping_size)
+                thousands_sep = np.thousands_sep();
+#endif
+
             std::string::size_type group = 0; // current group number
             char last_grp_size = grouping[0] <= 0 ? CHAR_MAX : grouping[0];
             // a) Since grouping is const, grouping[grouping.size()] returns 0.
@@ -516,17 +526,14 @@ namespace boost
 #ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
             BOOST_STATIC_ASSERT(std::numeric_limits<T>::digits10 < CHAR_MAX);
 #endif
-
-            char left = last_grp_size;
-#endif
-
             typedef typename Traits::int_type int_type;
             CharT const czero = lcast_char_constants<CharT>::zero;
             int_type const zero = Traits::to_int_type(czero);
 
+            char left = last_grp_size;
+
             do
             {
-#ifndef BOOST_LEXICAL_CAST_ASSUME_C_LOCALE
                 if(left == 0)
                 {
                     ++group;
@@ -542,8 +549,6 @@ namespace boost
                 }
 
                 --left;
-#endif
-
                 --finish;
                 int_type const digit = static_cast<int_type>(n % 10U);
                 Traits::assign(*finish, Traits::to_char_type(zero + digit));
@@ -609,7 +614,7 @@ namespace boost
                 stream.str().swap(output);
                 return true;
             }
-            #ifndef BOOST_LCAST_NO_WCHAR_T
+            #ifndef DISABLE_WIDE_CHAR_SUPPORT
             bool operator>>(std::wstring &output)
             {
                 stream.str().swap(output);
@@ -665,10 +670,9 @@ namespace boost
                 Traits::assign(*p, ch);
             }
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
             static void widen_and_assign(wchar_t* p, char ch)
             {
-                // TODO: use BOOST_NO_STD_LOCALE
                 std::locale loc;
                 wchar_t w = BOOST_USE_FACET(std::ctype<wchar_t>, loc).widen(ch);
                 Traits::assign(*p, w);
@@ -699,9 +703,9 @@ namespace boost
 
         public:
 
-            lexical_stream_limited_src(CharT* sta, CharT* fin)
-              : start(sta)
-              , finish(fin)
+            lexical_stream_limited_src(CharT* start, CharT* finish)
+              : start(start)
+              , finish(finish)
             {}
 
         public: // output
@@ -716,7 +720,7 @@ namespace boost
 
             bool operator<<(bool);
             bool operator<<(char);
-#if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+#if !defined(DISABLE_WIDE_CHAR_SUPPORT) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
             bool operator<<(wchar_t);
 #endif
             bool operator<<(CharT const*);
@@ -781,7 +785,7 @@ namespace boost
 
             bool operator>>(std::string&);
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
             bool operator>>(std::wstring&);
 #endif
 
@@ -816,7 +820,7 @@ namespace boost
             return true;
         }
 
-#if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+#if !defined(DISABLE_WIDE_CHAR_SUPPORT) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
         template<typename CharT, class Base, class Traits>
         inline bool lexical_stream_limited_src<CharT,Base,Traits>::operator<<(
                 wchar_t ch)
@@ -903,7 +907,7 @@ namespace boost
         inline bool lexical_stream_limited_src<CharT,Base,Traits>::operator<<(
                 unsigned short n)
         {
-            start = lcast_put_unsigned<Traits>(n, finish);
+            start = lcast_put_unsigned<Traits>(lcast_to_unsigned(n), finish);
             return true;
         }
 
@@ -990,7 +994,7 @@ namespace boost
             return true;
         }
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<typename CharT, class Base, class Traits>
         inline bool lexical_stream_limited_src<CharT,Base,Traits>::operator>>(
                 std::wstring& str)
@@ -1045,7 +1049,7 @@ namespace boost
             BOOST_STATIC_CONSTANT(bool, value = false);
         };
 
-#if !defined(BOOST_LCAST_NO_WCHAR_T) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
+#if !defined(DISABLE_WIDE_CHAR_SUPPORT) && !defined(BOOST_NO_INTRINSIC_WCHAR_T)
         template<>
         struct lcast_streambuf_for_target<wchar_t>
         {
@@ -1061,7 +1065,7 @@ namespace boost
             BOOST_STATIC_CONSTANT(bool, value = false);
         };
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<class Traits, class Alloc>
         struct lcast_streambuf_for_target<
                     std::basic_string<wchar_t,Traits,Alloc> >
@@ -1076,7 +1080,7 @@ namespace boost
             BOOST_STATIC_CONSTANT(bool, value = false);
         };
 
-#ifndef BOOST_LCAST_NO_WCHAR_T
+#ifndef DISABLE_WIDE_CHAR_SUPPORT
         template<>
         struct lcast_streambuf_for_target<std::wstring>
         {
@@ -1197,5 +1201,5 @@ namespace boost
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 
-#undef BOOST_LCAST_NO_WCHAR_T
+#undef DISABLE_WIDE_CHAR_SUPPORT
 #endif

lexical_cast.htm

@@ -81,7 +81,7 @@
 			conversions, such as where precision or formatting need tighter control than is 
 			offered by the default behavior of <code>lexical_cast</code>, the conventional <code>
 				stringstream</code> approach is recommended. Where the conversions are 
-			numeric to numeric, <code><a href="../numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html">numeric_cast</a></code>
+			numeric to numeric, <code><a href="../numeric/conversion/doc/numeric_cast.html">numeric_cast</a></code>
 			may offer more reasonable behavior than <code>lexical_cast</code>.
 		<p>
 			For a good discussion of the options and issues involved in string-based 
@@ -202,9 +202,9 @@ public:
     Lexical conversion to these types is simply reading a byte from source but since the source has
     more than one byte, the exception is thrown.
     <p>Please use other integer types such as <code>int</code> or <code>short int</code>. If bounds checking
-    is important, you can also call <a href="../../libs/numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html">numeric_cast</a>:
+    is important, you can also call <a href="../../libs/numeric/conversion/doc/numeric_cast.html">numeric_cast</a>:
 
-<pre><a href="../../libs/numeric/conversion/doc/html/boost_numericconversion/improved_numeric_cast__.html">numeric_cast</a>&lt;int8_t&gt;(lexical_cast&lt;int&gt;("127"));</pre>
+<pre><a href="../../libs/numeric/conversion/doc/numeric_cast.html">numeric_cast</a>&lt;int8_t&gt;(lexical_cast&lt;int&gt;("127"));</pre>
 
     <p> Q: What does <code>lexical_cast&lt;std::string&gt;</code> of an <code>int8_t</code> or <code>uint8_t</code> not do what I expect?
     <br> A: As above, note that <code>int8_t</code> and <code>uint8_t</code> are actually chars and are formatted as such.  To avoid this, cast to an integer type first: