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/macros/config.h" 12 #include "src/__support/wctype_utils.h" 13 14 #include "hdr/types/wint_t.h" 15 #include "hdr/wchar_macros.h" // for WEOF. 16 17 namespace LIBC_NAMESPACE_DECL { 18 19 LLVM_LIBC_FUNCTION(wint_t, btowc, (int c)) { 20 auto result = internal::btowc(c); 21 if (result.has_value()) { 22 return result.value(); 23 } else { 24 return WEOF; 25 } 26 } 27 28 } // namespace LIBC_NAMESPACE_DECL 29