| //===-- Implementation of isalpha------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/ctype/isalpha.h" |
| |
| #include "src/__support/CPP/limits.h" |
| #include "src/__support/common.h" |
| #include "src/__support/ctype_utils.h" |
| #include "src/__support/macros/config.h" |
| |
| namespace LIBC_NAMESPACE_DECL { |
| |
| LLVM_LIBC_FUNCTION(int, isalpha, (int c)) { |
| if (c < 0 || c > cpp::numeric_limits<unsigned char>::max()) |
| return 0; |
| return static_cast<int>(internal::isalpha(static_cast<char>(c))); |
| } |
| |
| } // namespace LIBC_NAMESPACE_DECL |
