65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
/*
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* Copyright 2022 Max Kellermann <max.kellermann@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "util/StringBuffer.hxx"
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#include <fmt/core.h>
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#if FMT_VERSION <= 80000
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#include <fmt/format.h> // for the fmt::buffer::flush() implementation
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#endif
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template<std::size_t size>
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[[nodiscard]] [[gnu::pure]]
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auto
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VFmtBuffer(fmt::string_view format_str, fmt::format_args args) noexcept
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{
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StringBuffer<size> buffer;
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auto [p, _] = fmt::vformat_to_n(buffer.begin(), buffer.capacity() - 1,
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format_str, args);
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*p = 0;
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return buffer;
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}
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template<std::size_t size, typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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auto
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FmtBuffer(const S &format_str, Args&&... args) noexcept
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{
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#if FMT_VERSION >= 90000
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return VFmtBuffer<size>(format_str,
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fmt::make_format_args(args...));
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#else
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return VFmtBuffer<size>(fmt::to_string_view(format_str),
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fmt::make_args_checked<Args...>(format_str,
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args...));
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#endif
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}
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