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#5732. Adds workaround for MinGW bugs

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[SVN r73347]
This commit is contained in:
Antony Polukhin
2011-07-25 05:02:07 +00:00
parent 0ee6400d5e
commit 2b76f558c1
1 changed files with 24 additions and 3 deletions
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27
include/boost/lexical_cast.hpp
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@ -1147,21 +1147,42 @@ namespace boost
bool shl_float(float val,wchar_t* out)
{ using namespace std;
if (put_inf_nan(start,finish,val)) return true;
finish = start + swprintf(out,finish-start,L"%.*g", static_cast<int>(boost::detail::lcast_get_precision<float >()), val );
finish = start + swprintf(out,
#ifndef __MINGW32__
finish-start,
#endif
L"%.*g", static_cast<int>(boost::detail::lcast_get_precision<float >()), val );
return finish > start;
}
bool shl_double(double val,wchar_t* out)
{ using namespace std;
if (put_inf_nan(start,finish,val)) return true;
finish = start + swprintf(out,finish-start,L"%.*lg", static_cast<int>(boost::detail::lcast_get_precision<double >()), val );
/* __MINGW32__ is defined for both mingw.org and for mingw-w64.
* For mingw-w64, __MINGW64__ is defined, too, when targetting
* 64 bits.
*
* swprintf realization in MinGW does not conform to the ISO C
* Standard.
*/
finish = start + swprintf(out,
#ifndef __MINGW32__
finish-start,
#endif
L"%.*lg", static_cast<int>(boost::detail::lcast_get_precision<double >()), val );
return finish > start;
}
bool shl_long_double(long double val,wchar_t* out)
{ using namespace std;
if (put_inf_nan(start,finish,val)) return true;
finish = start + swprintf(out,finish-start,L"%.*Lg", static_cast<int>(boost::detail::lcast_get_precision<long double >()), val );
finish = start + swprintf(out,
#ifndef __MINGW32__
finish-start,
#endif
L"%.*Lg", static_cast<int>(boost::detail::lcast_get_precision<long double >()), val );
return finish > start;
}
#endif