libc/src/ctype/isalpha.cpp

   1 //===-- Implementation of isalpha------------------------------------------===//
   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/isalpha.h"
  10
  11 #include "src/__support/common.h"
  12 #include "src/__support/ctype_utils.h"
  13
  14 namespace LIBC_NAMESPACE {
  15
  16 // TODO: Currently restricted to default locale.
  17 // These should be extended using locale information.
  18 LLVM_LIBC_FUNCTION(int, isalpha, (int c)) {
  19   return static_cast<int>(internal::isalpha(static_cast<unsigned>(c)));
  20 }
  21
  22 } // namespace LIBC_NAMESPACE