1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __STDLIB_STRING_H__ 18 #define __STDLIB_STRING_H__ 19 20 #include <stddef.h> 21 22 size_t strlen(const char *str); 23 void *memchr(const void *ptr, int ch, size_t count); 24 char *strrchr(const char *str, int c); 25 char *strchr(const char *str, int c); 26 size_t strnlen(const char *s, size_t maxlen); 27 int strcmp(const char *s1, const char *s2); 28 int strncmp(const char *s1, const char *s2, size_t n); 29 unsigned long int strtoul(const char *s, char **endptr, int base); 30 31 #endif 32