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Disable UDL templates on GCC 9 by default (#1148)
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@ -148,15 +148,18 @@ FMT_END_NAMESPACE
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# endif
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#endif
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// EDG C++ Front End based compilers (icc, nvcc) do not currently support UDL
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// templates.
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#if FMT_USE_USER_DEFINED_LITERALS && FMT_ICC_VERSION == 0 && \
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FMT_CUDA_VERSION == 0 && \
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((FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L) || \
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(defined(FMT_CLANG_VERSION) && FMT_CLANG_VERSION >= 304))
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# define FMT_UDL_TEMPLATE 1
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#else
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# define FMT_UDL_TEMPLATE 0
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#ifndef FMT_USE_UDL_TEMPLATE
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// EDG front end based compilers (icc, nvcc) do not support UDL templates yet
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// and GCC 9 warns about them.
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# if FMT_USE_USER_DEFINED_LITERALS && FMT_ICC_VERSION == 0 && \
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FMT_CUDA_VERSION == 0 && \
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((FMT_GCC_VERSION >= 600 && FMT_GCC_VERSION <= 900 && \
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__cplusplus >= 201402L) || \
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(defined(FMT_CLANG_VERSION) && FMT_CLANG_VERSION >= 304))
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# define FMT_USE_UDL_TEMPLATE 1
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# else
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# define FMT_USE_UDL_TEMPLATE 0
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# endif
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#endif
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#if FMT_HAS_GXX_CXX11 || FMT_HAS_FEATURE(cxx_trailing_return) || \
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@ -3570,7 +3573,7 @@ inline std::size_t formatted_size(string_view format_str, const Args&... args) {
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#if FMT_USE_USER_DEFINED_LITERALS
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namespace internal {
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# if FMT_UDL_TEMPLATE
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# if FMT_USE_UDL_TEMPLATE
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template <typename Char, Char... CHARS> class udl_formatter {
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public:
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template <typename... Args>
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@ -3593,7 +3596,7 @@ template <typename Char> struct udl_formatter {
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return format(str, std::forward<Args>(args)...);
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}
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};
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# endif // FMT_UDL_TEMPLATE
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# endif // FMT_USE_UDL_TEMPLATE
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template <typename Char> struct udl_arg {
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const Char* str;
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@ -3606,7 +3609,7 @@ template <typename Char> struct udl_arg {
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} // namespace internal
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inline namespace literals {
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# if FMT_UDL_TEMPLATE
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# if FMT_USE_UDL_TEMPLATE
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template <typename Char, Char... CHARS>
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FMT_CONSTEXPR internal::udl_formatter<Char, CHARS...> operator""_format() {
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return {};
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@ -3630,7 +3633,7 @@ inline internal::udl_formatter<wchar_t> operator"" _format(const wchar_t* s,
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std::size_t) {
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return {s};
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}
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# endif // FMT_UDL_TEMPLATE
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# endif // FMT_USE_UDL_TEMPLATE
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/**
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\rst
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