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In VS2013, the std::equal does not have the overload that takes 4 iterators

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This commit is contained in:
Pascal Menuet 2015-12-12 22:59:57 +01:00
parent 5e7e68c8b0
commit f38ee4fb5e
1 changed files with 8 additions and 0 deletions
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8
include/string_span.h
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@ -35,6 +35,7 @@
#define GSL_MSVC_HAS_TYPE_DEDUCTION_BUG
#define GSL_MSVC2013_ICE_WHEN_USING_DUMMY_TEMPLATE_PARAMETER
#define GSL_MSVC2013_EQUAL_ALGORITHM_IS_NOT_CPP14
// noexcept is not understood
#ifndef GSL_THROW_ON_CONTRACT_VIOLATION
@ -611,7 +612,13 @@ using wzstring_builder = basic_zstring_builder<wchar_t, Max>;
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range>
bool operator==(const gsl::basic_string_span<CharT, Extent>& one, const gsl::basic_string_span<CharT, Extent>& other) noexcept
{
#ifdef GSL_MSVC2013_EQUAL_ALGORITHM_IS_NOT_CPP14
if (std::distance(one.begin(), one.end()) != std::distance(other.begin(), other.end()))
return false;
return std::equal(one.begin(), one.end(), other.begin());
#else
return std::equal(one.begin(), one.end(), other.begin(), other.end());
#endif
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range>
@ -651,6 +658,7 @@ bool operator>=(const gsl::basic_string_span<CharT, Extent>& one, const gsl::bas
#pragma pop_macro("noexcept")
#endif // GSL_THROW_ON_CONTRACT_VIOLATION
#undef GSL_MSVC2013_EQUAL_ALGORITHM_IS_NOT_CPP14
#undef GSL_MSVC2013_ICE_WHEN_USING_DUMMY_TEMPLATE_PARAMETER
#undef GSL_MSVC_HAS_TYPE_DEDUCTION_BUG