llvm/libc/test/src/stdio/vfprintf_test.cpp

//===-- Unittests for vfprintf --------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// These tests are copies of the non-v variants of the printf functions. This is
// because these functions are identical in every way except for how the varargs
// are passed.

#ifndef LIBC_COPT_STDIO_USE_SYSTEM_FILE
#include "src/stdio/fclose.h"
#include "src/stdio/ferror.h"
#include "src/stdio/fopen.h"
#include "src/stdio/fread.h"
#endif // LIBC_COPT_STDIO_USE_SYSTEM_FILE

#include "src/stdio/vfprintf.h"

#include "test/UnitTest/Test.h"

namespace printf_test {
#ifndef LIBC_COPT_STDIO_USE_SYSTEM_FILE
using LIBC_NAMESPACE::fclose;
using LIBC_NAMESPACE::ferror;
using LIBC_NAMESPACE::fopen;
using LIBC_NAMESPACE::fread;
#else  // defined(LIBC_COPT_STDIO_USE_SYSTEM_FILE)
fclose;
ferror;
fopen;
fread;
#endif // LIBC_COPT_STDIO_USE_SYSTEM_FILE
} // namespace printf_test

int call_vfprintf(::FILE *__restrict stream, const char *__restrict format,
                  ...) { … }

TEST(LlvmLibcVFPrintfTest, WriteToFile) { … }