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Update string.hpp #14

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Apr 19, 2022
Merged

Update string.hpp #14

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23 changes: 15 additions & 8 deletions stdex/include/string.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ namespace stdex
void strtold(); // dummy
void wcstold(); // dummy
float swprintf(...);
int snprintf(...);
float snprintf(...);
}
using namespace std;
using namespace std_dummy;
Expand Down Expand Up @@ -124,7 +124,7 @@ namespace stdex
using std_cpp11::wcstoull;
using std_cpp11::strtold;
using std_cpp11::wcstold;
using std_cpp11::snprintf;


struct _strtoll_present
{
Expand Down Expand Up @@ -156,11 +156,6 @@ namespace stdex
static const bool value = sizeof(_wcstold_tester(&wcstold)) == sizeof(_yes_type);
};

struct _snprintf_present
{
static const bool value = sizeof(_snprintf_tester(&snprintf)) == sizeof(_yes_type);
};

using std_cpp11::swprintf;

_yes_type _has_4arg_swprintf_tester(int);
Expand All @@ -171,6 +166,18 @@ namespace stdex
static const bool value =
sizeof(_has_4arg_swprintf_tester(swprintf(_declptr<wchar_t>(), 42, _declptr<wchar_t>(), 0 ))) == sizeof(_yes_type);
};

using std_cpp11::snprintf;

_yes_type _has_4arg_snprintf_tester(int);
_no_type _has_4arg_snprintf_tester(float);

struct _has_4arg_snprintf
{
static const bool value =
sizeof(_has_4arg_snprintf_tester(snprintf(_declptr<char>(), 42, _declptr<char>(), 0 ))) == sizeof(_yes_type);
};

}

template<bool _IsSigned>
Expand Down Expand Up @@ -313,7 +320,7 @@ namespace stdex
inline
void _sprintf4_std_impl(char* buffer, std::size_t len, const char* format, _ArgT arg)
{
_sprintf_impl<string_detail::_snprintf_present::value>::call(buffer, len, format, arg);
_sprintf_impl<string_detail::_has_4arg_snprintf::value>::call(buffer, len, format, arg);
}

template<>
Expand Down