AuroraMiddleware/fmtlegacy
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Add comments about things broken in MSVC

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This commit is contained in:
Victor Zverovich 2019-06-03 18:59:58 -07:00
parent 1530242551
commit 5bafcb437b
1 changed files with 5 additions and 3 deletions
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8
include/fmt/core.h
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@ -204,9 +204,9 @@ FMT_BEGIN_NAMESPACE
template <bool B, class T = void>
using enable_if_t = typename std::enable_if<B, T>::type;
// enable_if helpers to be used in template parameters which results in much
// shorter symbols: https://godbolt.org/z/sWw4vP.
// Also include fix for VS2019 compilation issue (see #1140 and #1186).
// An enable_if helper to be used in template parameters which results in much
// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed
// to workaround a bug in MSVC 2019 (see #1140 and #1186).
#define FMT_ENABLE_IF(...) enable_if_t<(__VA_ARGS__), int> = 0
namespace internal {
@ -587,6 +587,8 @@ dummy_string_view to_string_view(...);
using fmt::v5::to_string_view;
// Specifies whether S is a string type convertible to fmt::basic_string_view.
// It should be a constexpr function but MSVC 2017 fails to compile it in
// enable_if.
template <typename S>
struct is_string
: std::integral_constant<