68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
// Formatting library for C++ - optional wchar_t support
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//
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// Copyright (c) 2012 - present, Victor Zverovich
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// All rights reserved.
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//
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// For the license information refer to format.h.
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#ifndef FMT_WCHAR_H_
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#define FMT_WCHAR_H_
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#include <cwchar>
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#include "format.h"
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FMT_BEGIN_NAMESPACE
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FMT_MODULE_EXPORT_BEGIN
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using wformat_parse_context = basic_format_parse_context<wchar_t>;
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using wformat_context = buffer_context<wchar_t>;
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using wformat_args = basic_format_args<wformat_context>;
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#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
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// Workaround broken conversion on older gcc.
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template <typename... Args> using wformat_string = wstring_view;
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#else
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template <typename... Args>
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using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
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#endif
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template <typename... Args>
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constexpr format_arg_store<wformat_context, Args...> make_wformat_args(
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const Args&... args) {
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return {args...};
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}
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inline namespace literals {
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constexpr auto operator"" _format(const wchar_t* s, size_t n)
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-> detail::udl_formatter<wchar_t> {
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return {{s, n}};
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}
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} // namespace literals
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inline void vprint(std::FILE* f, wstring_view fmt, wformat_args args) {
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wmemory_buffer buffer;
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detail::vformat_to(buffer, fmt, args);
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buffer.push_back(L'\0');
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if (std::fputws(buffer.data(), f) == -1)
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FMT_THROW(system_error(errno, "cannot write to file"));
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}
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inline void vprint(wstring_view fmt, wformat_args args) {
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vprint(stdout, fmt, args);
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}
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template <typename... T>
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void print(std::FILE* f, wformat_string<T...> fmt, T&&... args) {
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return vprint(f, wstring_view(fmt), make_wformat_args(args...));
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}
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template <typename... T> void print(wformat_string<T...> fmt, T&&... args) {
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return vprint(wstring_view(fmt), make_wformat_args(args...));
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}
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FMT_MODULE_EXPORT_END
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FMT_END_NAMESPACE
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#endif // FMT_WCHAR_H_
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