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- /*
- * Copyright 2016-present Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include <folly/portability/String.h>
- #if !FOLLY_HAVE_MEMRCHR
- extern "C" void* memrchr(const void* s, int c, size_t n) {
- for (auto p = ((const char*)s) + n - 1; p >= (const char*)s; p--) {
- if (*p == (char)c) {
- return (void*)p;
- }
- }
- return nullptr;
- }
- #endif
- #if defined(_WIN32) || defined(__FreeBSD__)
- extern "C" char* strndup(const char* a, size_t len) {
- auto neededLen = strlen(a);
- if (neededLen > len) {
- neededLen = len;
- }
- char* buf = (char*)malloc((neededLen + 1) * sizeof(char));
- if (!buf) {
- return nullptr;
- }
- memcpy(buf, a, neededLen);
- buf[neededLen] = '\0';
- return buf;
- }
- #endif
- #ifdef _WIN32
- extern "C" {
- void bzero(void* s, size_t n) {
- memset(s, 0, n);
- }
- int strcasecmp(const char* a, const char* b) {
- return _stricmp(a, b);
- }
- int strncasecmp(const char* a, const char* b, size_t c) {
- return _strnicmp(a, b, c);
- }
- char* strtok_r(char* str, char const* delim, char** ctx) {
- return strtok_s(str, delim, ctx);
- }
- }
- #endif
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