1 //===-- Implementation of strdup ------------------------------------------===// 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/strdup.h" 10 #include "src/string/memory_utils/memcpy_implementations.h" 11 #include "src/string/string_utils.h" 12 13 #include "src/__support/common.h" 14 15 #include <stdlib.h> 16 17 namespace __llvm_libc { 18 19 LLVM_LIBC_FUNCTION(char *, strdup, (const char *src)) { 20 if (src == nullptr) { 21 return nullptr; 22 } 23 size_t len = internal::string_length(src) + 1; 24 char *dest = reinterpret_cast<char *>(::malloc(len)); 25 if (dest == nullptr) { 26 return nullptr; 27 } 28 inline_memcpy(dest, src, len); 29 return dest; 30 } 31 32 } // namespace __llvm_libc 33