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Make constexpr remove_prefix gcc version check tighter (#648)

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This commit is contained in:
Victor Zverovich 2018-02-14 05:46:41 -08:00
parent f3f19e762f
commit 229887bd40
1 changed files with 5 additions and 4 deletions
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9
include/fmt/core.h
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@ -147,9 +147,10 @@
(defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910)
# include <string_view>
namespace fmt { using std::basic_string_view; }
// std::experimental::basic_string_view::remove_prefix isn't constexpr in gcc 6.
// std::experimental::basic_string_view::remove_prefix isn't constexpr until
// gcc 7.3.
#elif (FMT_HAS_INCLUDE(<experimental/string_view>) && \
(FMT_GCC_VERSION == 0 || FMT_GCC_VERSION >= 700) && \
(FMT_GCC_VERSION == 0 || FMT_GCC_VERSION >= 730) && \
__cplusplus >= 201402L)
# include <experimental/string_view>
namespace fmt { using std::experimental::basic_string_view; }
@ -1065,8 +1066,8 @@ inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg) {
// This function template is deleted intentionally to disable nested named
// arguments as in ``format("{}", arg("a", arg("b", 42)))``.
template <typename S, typename... T>
void arg(S, internal::named_arg<T...>) FMT_DELETED;
template <typename S, typename T, typename Char>
void arg(S, internal::named_arg<T, Char>) FMT_DELETED;
enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };