libc/src/wchar/btowc.cpp

   1 //===-- Implementation of btowc -------------------------------------------===//
   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/wchar/btowc.h"
  10 #include "src/__support/common.h"
  11 #include "src/__support/wctype_utils.h"
  12
  13 #include <stdio.h> // for EOF.
  14
  15 namespace LIBC_NAMESPACE {
  16
  17 LLVM_LIBC_FUNCTION(int, btowc, (wint_t c)) {
  18   auto result = internal::btowc(c);
  19   if (result.has_value()) {
  20     return result.value();
  21   } else {
  22     return WEOF;
  23   }
  24 }
  25
  26 } // namespace LIBC_NAMESPACE