52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
/*
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* Copyright 2003-2022 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "FormatString.hxx"
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#include "AllocatedString.hxx"
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#include <stdio.h>
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#include <stdlib.h>
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AllocatedString
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FormatStringV(const char *fmt, std::va_list args) noexcept
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{
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std::va_list tmp;
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va_copy(tmp, args);
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const int length = vsnprintf(nullptr, 0, fmt, tmp);
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va_end(tmp);
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if (length <= 0)
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/* wtf.. */
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abort();
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char *buffer = new char[length + 1];
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vsnprintf(buffer, length + 1, fmt, args);
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return AllocatedString::Donate(buffer);
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}
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AllocatedString
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FormatString(const char *fmt, ...) noexcept
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{
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std::va_list args;
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va_start(args, fmt);
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auto p = FormatStringV(fmt, args);
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va_end(args);
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return p;
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}
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