compute-runtime/runtime/helpers/string.h

107 lines
2.7 KiB
C++

/*
* Copyright (c) 2017 - 2018, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#if defined(__linux__)
#include <errno.h>
#include <cstring>
#include <string>
inline int strcpy_s(char *dst, size_t dstSize, const char *src) {
if ((dst == nullptr) || (src == nullptr)) {
return -EINVAL;
}
size_t length = strlen(src);
if (dstSize <= length) {
return -ERANGE;
}
strncpy(dst, src, length);
dst[length] = '\0';
return 0;
}
inline int strncpy_s(char *dst, size_t numberOfElements, const char *src, size_t count) {
if ((dst == nullptr) || (src == nullptr)) {
return -EINVAL;
}
if (numberOfElements < count) {
return -ERANGE;
}
size_t length = strlen(src);
if (length > count) {
length = count;
}
strncpy(dst, src, length);
if (length < numberOfElements) {
numberOfElements = length;
}
dst[numberOfElements] = '\0';
return 0;
}
inline size_t strnlen_s(const char *str, size_t count) {
if (str == nullptr) {
return 0;
}
for (size_t i = 0; i < count; ++i) {
if (str[i] == '\0')
return i;
}
return count;
}
inline int memcpy_s(void *dst, size_t destSize, const void *src, size_t count) {
if ((dst == nullptr) || (src == nullptr)) {
return -EINVAL;
}
if (destSize < count) {
return -ERANGE;
}
memcpy(dst, src, count);
return 0;
}
inline int memmove_s(void *dst, size_t numberOfElements, const void *src, size_t count) {
if ((dst == nullptr) || (src == nullptr)) {
return -EINVAL;
}
if (numberOfElements < count) {
return -ERANGE;
}
memmove(dst, src, count);
return 0;
}
#endif