libc/src/stdio/generic/vprintf.cpp

   1 //===-- Implementation of vprintf -------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/stdio/vprintf.h"
  10
  11 #include "src/__support/File/file.h"
  12 #include "src/__support/arg_list.h"
  13 #include "src/__support/macros/config.h"
  14 #include "src/stdio/printf_core/vfprintf_internal.h"
  15
  16 #include "hdr/types/FILE.h"
  17 #include <stdarg.h>
  18
  19 #ifndef LIBC_COPT_STDIO_USE_SYSTEM_FILE
  20 #define PRINTF_STDOUT LIBC_NAMESPACE::stdout
  21 #else // LIBC_COPT_STDIO_USE_SYSTEM_FILE
  22 #define PRINTF_STDOUT ::stdout
  23 #endif // LIBC_COPT_STDIO_USE_SYSTEM_FILE
  24
  25 namespace LIBC_NAMESPACE_DECL {
  26
  27 LLVM_LIBC_FUNCTION(int, vprintf,
  28                    (const char *__restrict format, va_list vlist)) {
  29   internal::ArgList args(vlist); // This holder class allows for easier copying
  30                                  // and pointer semantics, as well as handling
  31                                  // destruction automatically.
  32   int ret_val = printf_core::vfprintf_internal(
  33       reinterpret_cast<::FILE *>(PRINTF_STDOUT), format, args);
  34   return ret_val;
  35 }
  36
  37 } // namespace LIBC_NAMESPACE_DECL