| Routine |
Attributes |
Description |
| strcat |
Concatenates two strings |
|
| strchr |
reentrant |
Returns a pointer to the first occurrence of a specified character in a string |
| strcmp |
reentrant |
Compares two strings |
| strcpy |
reentrant |
Copies one string to another |
| strcspn |
Returns the index of the first character in a string that matches any character in a second string |
|
| strlen |
reentrant |
Returns the length of a string |
| strncat |
Concatenates up to a specified number of characters from one string to another |
|
| strncmp |
Compares two strings up to a specified number of characters |
|
| strncpy |
Copies up to a specified number of characters from one string to another |
|
| strpbrk |
Returns a pointer to the first character in a string that matches any character in a second string |
|
| strpos |
reentrant |
Returns the index of the first occurrence of a specified character in a string |
| strrchr |
reentrant |
Returns a pointer to the last occurrence of a specified character in a string |
| strrpbrk |
Returns a pointer to the last character in a string that matches any character in a second string |
|
| strrpos |
reentrant |
Returns the index of the last occurrence of a specified character in a string |
| strspn |
Returns the index of the first character in a string that does not match any character in a second string |
|
The string routines are implemented as functions and are prototyped in the STRING.H include file.
The string routines provide you with the following operations to perform on character strings:
Copying strings
Appending one string to the end of another
Comparing two strings
Locating one or more characters from a specified set in a string
All string functions operate on null-terminated character strings. To work on non-terminated strings, use the buffer manipulation routines described earlier in this section.