system/FmtError: move to lib/fmt/
This commit is contained in:
Max Kellermann
69
src/lib/fmt/SystemError.cxx
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69
src/lib/fmt/SystemError.cxx
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@@ -0,0 +1,69 @@
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/*
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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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#include "SystemError.hxx"
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#include "ToBuffer.hxx"
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#include <array>
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std::system_error
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VFmtSystemError(std::error_code code,
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fmt::string_view format_str, fmt::format_args args) noexcept
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{
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const auto msg = VFmtBuffer<512>(format_str, args);
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return std::system_error{code, msg};
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}
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#ifdef _WIN32
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#include <windef.h> // for HWND (needed by winbase.h)
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#include <winbase.h> // for FormatMessageA()
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std::system_error
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VFmtLastError(DWORD code,
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fmt::string_view format_str, fmt::format_args args) noexcept
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{
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std::array<char, 512> buffer;
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const auto end = buffer.data() + buffer.size();
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constexpr std::size_t max_prefix = sizeof(buffer) - 128;
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auto [p, _] = fmt::vformat_to_n(buffer.data(),
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buffer.size() - max_prefix,
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format_str, args);
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*p++ = ':';
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*p++ = ' ';
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FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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nullptr, code, 0, p, end - p, nullptr);
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return MakeLastError(code, buffer.data());
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}
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#endif // _WIN32
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122
src/lib/fmt/SystemError.hxx
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122
src/lib/fmt/SystemError.hxx
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@@ -0,0 +1,122 @@
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/*
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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 "system/Error.hxx" // IWYU pragma: export
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#include <fmt/core.h>
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#if FMT_VERSION >= 80000 && FMT_VERSION < 90000
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#include <fmt/format.h>
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#endif
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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VFmtSystemError(std::error_code code,
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fmt::string_view format_str, fmt::format_args args) noexcept;
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template<typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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FmtSystemError(std::error_code code,
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const S &format_str, Args&&... args) noexcept
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{
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#if FMT_VERSION >= 90000
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return VFmtSystemError(code, format_str,
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fmt::make_format_args(args...));
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#else
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return VFmtSystemError(code, 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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#ifdef _WIN32
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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VFmtLastError(DWORD code,
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fmt::string_view format_str, fmt::format_args args) noexcept;
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template<typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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FmtLastError(DWORD code,
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const S &format_str, Args&&... args) noexcept
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{
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#if FMT_VERSION >= 90000
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return VFmtLastError(code, format_str,
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fmt::make_format_args(args...));
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#else
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return VFmtLastError(code, 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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template<typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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FmtLastError(const S &format_str, Args&&... args) noexcept
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{
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return FmtLastError(GetLastError(),
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format_str, std::forward<Args>(args)...);
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}
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#endif // _WIN32
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template<typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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FmtErrno(int code, const S &format_str, Args&&... args) noexcept
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{
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return FmtSystemError(std::error_code(code, ErrnoCategory()),
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format_str, std::forward<Args>(args)...);
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}
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template<typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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FmtErrno(const S &format_str, Args&&... args) noexcept
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{
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return FmtErrno(errno, format_str, std::forward<Args>(args)...);
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}
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template<typename S, typename... Args>
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[[nodiscard]] [[gnu::pure]]
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std::system_error
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FmtFileNotFound(const S &format_str, Args&&... args) noexcept
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{
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#ifdef _WIN32
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return FmtLastError(DWORD{ERROR_FILE_NOT_FOUND},
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format_str, std::forward<Args>(args)...);
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#else
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return FmtErrno(ENOENT, format_str, std::forward<Args>(args)...);
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#endif
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}
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@@ -8,6 +8,14 @@ if compiler.get_id() == 'clang' and compiler.version().version_compare('<15')
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)
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endif
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fmt_dep = declare_dependency(
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fmt = static_library(
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'fmt',
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'SystemError.cxx',
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include_directories: inc,
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dependencies: libfmt,
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)
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fmt_dep = declare_dependency(
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link_with: fmt,
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dependencies: libfmt,
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)
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