36 lines
713 B
C++
36 lines
713 B
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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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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