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//===-- Implementation of vsprintf ------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/vsprintf.h"
#include "src/__support/CPP/limits.h"
#include "src/__support/arg_list.h"
#include "src/__support/macros/config.h"
#include "src/stdio/printf_core/printf_main.h"
#include "src/stdio/printf_core/writer.h"
#include <stdarg.h>
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(int, vsprintf,
(char *__restrict buffer, const char *__restrict format,
va_list vlist)) {
internal::ArgList args(vlist); // This holder class allows for easier copying
// and pointer semantics, as well as handling
// destruction automatically.
printf_core::WriteBuffer<printf_core::Mode<
printf_core::WriteMode::FILL_BUFF_AND_DROP_OVERFLOW>::value>
wb(buffer, cpp::numeric_limits<size_t>::max());
printf_core::Writer writer(wb);
int ret_val = printf_core::printf_main(&writer, format, args);
wb.buff[wb.buff_cur] = '\0';
return ret_val;
}
} // namespace LIBC_NAMESPACE_DECL
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