libc/src/stdio/gpu/putchar.cpp

   1 //===-- GPU implementation of putchar -------------------------------------===//
   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/putchar.h"
  10 #include "file.h"
  11 #include "src/__support/macros/config.h"
  12
  13 #include "hdr/stdio_macros.h" // for EOF and stdout.
  14
  15 namespace LIBC_NAMESPACE_DECL {
  16
  17 LLVM_LIBC_FUNCTION(int, putchar, (int c)) {
  18   unsigned char uc = static_cast<unsigned char>(c);
  19
  20   size_t written = file::write(stdout, &uc, 1);
  21   if (1 != written)
  22     return EOF;
  23
  24   return 0;
  25 }
  26
  27 } // namespace LIBC_NAMESPACE_DECL