The following table lists and describes string and block copy intrinsics that you can use on systems based on IA-32 and Intel® 64 architectures. They may invoke library functions that are more highly optimized for Intel® microprocessors than for non-Intel microprocessors.
strncpy() and strncmp() functions are implemented as intrinsics depending on compiler version and compiler switches like optimization level.
Intrinsic |
Description |
|---|---|
char *_strset(char *, _int32) |
Sets all characters in a string to a fixed value. |
int memcmp(const void *cs, const void *ct, size_t n) |
Compares two regions of memory. Return:
|
void *memcpy(void *s, const void *ct, size_t n) |
Copies from memory. Returns s. |
void *memset(void *s, int c, size_t n) |
Sets memory to a fixed value. Returns s. |
char *strcat(char *s, const char *ct) |
Appends to a string. Returns s. |
int strcmp(const char *, const char *) |
Compares two strings. Return <0 if cs<ct, 0 if cs=ct, or >0 if cs>ct. |
char *strcpy(char *s, const char *ct) |
Copies a string. Returns s. |
size_t strlen(const char *cs) |
Returns the length of string cs. |
int strncmp(char *, char *, int) |
Compare two strings, but only specified number of characters. |
int strncpy(char *, char *, int) |
Copies a string, but only specified number of characters. |