1 //===-- Implementation of strcmp ------------------------------------------===// 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/strcmp.h" 10 11 #include "src/__support/common.h" 12 13 namespace __llvm_libc { 14 15 // TODO: Look at benefits for comparing words at a time. 16 LLVM_LIBC_FUNCTION(int, strcmp, (const char *left, const char *right)) { 17 for (; *left && *left == *right; ++left, ++right) 18 ; 19 return *reinterpret_cast<const unsigned char *>(left) - 20 *reinterpret_cast<const unsigned char *>(right); 21 } 22 23 } // namespace __llvm_libc 24