1 //===-- Implementation of isxdigit-----------------------------------------===//
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/ctype/isxdigit.h"
10 #include "src/ctype/ctype_utils.h"
11 
12 #include "src/__support/common.h"
13 
14 namespace __llvm_libc {
15 
16 // TODO: Currently restricted to default locale.
17 // These should be extended using locale information.
18 int LLVM_LIBC_ENTRYPOINT(isxdigit)(int c) {
19   const unsigned ch = c;
20   return internal::isdigit(ch) || (ch | 32) - 'a' < 6;
21 }
22 
23 } // namespace __llvm_libc
24