libc/src/string/strlen.cpp

   1 //===-- Implementation of strlen ------------------------------------------===//
   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/string/strlen.h"
  10 #include "src/string/string_utils.h"
  11
  12 #include "src/__support/common.h"
  13
  14 namespace __llvm_libc {
  15
  16 // TODO: investigate the performance of this function.
  17 // There might be potential for compiler optimization.
  18 LLVM_LIBC_FUNCTION(size_t, strlen, (const char *src)) {
  19   return internal::string_length(src);
  20 }
  21
  22 } // namespace __llvm_libc