The C has a number of functions and macros that are available to work with C strings and arrays. These functions are available to use in a current program after including the header file using - #include <string.h>. All functions and macros of this header file are listed below:
| Functions | Description |
|---|
| memcmp() |
Compares two blocks of memory. |
| strcmp() |
Compares two strings. |
| strcoll() |
Compares two strings using locale. |
| strncmp() |
Compare characters of two strings. |
| strxfrm() |
Transform string using locale. |
| Functions | Description |
|---|
| strcat() |
Concatenate strings. |
| strncat() |
Append characters from string. |
| Functions | Description |
|---|
| memchr() |
Locate character in block of memory. |
| strchr() |
Searches the first occurrence of a character in a string. |
| strcspn() |
Get span until character in string. |
| strpbrk() |
Searches the first occurrence of any character of a string inside another string. |
| strrchr() |
Searches the last occurrence of a character in a string. |
| strspn() |
Get span of character set in string. |
| strstr() |
Searches the first occurrence of a string inside another string. |
| strtok() |
Split string into tokens. |
| Functions | Description |
|---|
| memset() |
Fills a block of memory. |
| strerror() |
Gets pointer to error message string. |
| strlen() |
Returns the length of a byte string. |
| Macros | Description |
|---|
| NULL |
Null pointer. |
| Types | Description |
|---|
| size_t |
Unsigned integer type. |
