1*ba7e1cddSMichael Jones //===-- Implementation of fprintf -------------------------------*- C++ -*-===//
2*ba7e1cddSMichael Jones //
3*ba7e1cddSMichael Jones // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*ba7e1cddSMichael Jones // See https://llvm.org/LICENSE.txt for license information.
5*ba7e1cddSMichael Jones // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*ba7e1cddSMichael Jones //
7*ba7e1cddSMichael Jones //===----------------------------------------------------------------------===//
8*ba7e1cddSMichael Jones 
9*ba7e1cddSMichael Jones #include "src/stdio/fprintf.h"
10*ba7e1cddSMichael Jones 
11*ba7e1cddSMichael Jones #include "src/__support/arg_list.h"
12*ba7e1cddSMichael Jones #include "src/stdio/ferror.h"
13*ba7e1cddSMichael Jones #include "src/stdio/printf_core/file_writer.h"
14*ba7e1cddSMichael Jones #include "src/stdio/printf_core/printf_main.h"
15*ba7e1cddSMichael Jones #include "src/stdio/printf_core/writer.h"
16*ba7e1cddSMichael Jones 
17*ba7e1cddSMichael Jones #include <stdarg.h>
18*ba7e1cddSMichael Jones #include <stdio.h>
19*ba7e1cddSMichael Jones 
20*ba7e1cddSMichael Jones namespace __llvm_libc {
21*ba7e1cddSMichael Jones 
22*ba7e1cddSMichael Jones LLVM_LIBC_FUNCTION(int, fprintf,
23*ba7e1cddSMichael Jones                    (::FILE *__restrict stream, const char *__restrict format,
24*ba7e1cddSMichael Jones                     ...)) {
25*ba7e1cddSMichael Jones   va_list vlist;
26*ba7e1cddSMichael Jones   va_start(vlist, format);
27*ba7e1cddSMichael Jones   internal::ArgList args(vlist); // This holder class allows for easier copying
28*ba7e1cddSMichael Jones                                  // and pointer semantics, as well as handling
29*ba7e1cddSMichael Jones                                  // destruction automatically.
30*ba7e1cddSMichael Jones   va_end(vlist);
31*ba7e1cddSMichael Jones   printf_core::Writer writer(reinterpret_cast<void *>(stream),
32*ba7e1cddSMichael Jones                              printf_core::write_to_file);
33*ba7e1cddSMichael Jones 
34*ba7e1cddSMichael Jones   int ret_val = printf_core::printf_main(&writer, format, args);
35*ba7e1cddSMichael Jones   if (__llvm_libc::ferror(stream))
36*ba7e1cddSMichael Jones     return -1;
37*ba7e1cddSMichael Jones   return ret_val;
38*ba7e1cddSMichael Jones }
39*ba7e1cddSMichael Jones 
40*ba7e1cddSMichael Jones } // namespace __llvm_libc
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