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String Functions
Arithmetic Functions
|
Function |
Description |
| strtod | Converts ASCII string to floating point number |
| strtol | Converts a string to a long integer |
| strtoul | Converts a string to an unsigned long integer |
| strtoimax, strtoumax | Converts a string to an integer |
| strtof | Converts an ASCII string to a floating point number |
| strtol | Converts a string to a long integer |
| strtoull | Converts a string to an unsigned long integer |
| strtoq | Converts a string to a long integer |
| strtouq | Converts a string to an unsigned long integer |
| strtold | Converts an ASCII string to a floating point number |
Time Functionalities
| Function | Description |
| strptime | Converts a string representation of time to a time tm structure |
| strftime | Format date and time |
Collation Functions
|
Function |
Description |
| strcoll | Compares two strings using the current locale |
| strxfrm | String transformation |
Error Messages
|
Function |
Description |
| perror | Describes a system or MySQL error code |
| strerror_r | Returns string describing error code |
| strerror | Returns string describing error code |
Locale
|
Function |
Description |
| strfmon | Converts monetary value to a string |
Compatibility String Search Functions
Copying and Concatenation
|
Function |
Description |
| memccpy | Copies memory area |
| bcopy | Copies byte sequence |
| bzero | Writes zero bytes |
| memcpy | Copies memory area |
| memmove | Copies memory area |
| memset | Fills memory with a constant byte |
| strcat | Concatenates two strings |
| strcpy | Copies the string src to dst (including the terminating ‘\0’ character). |
| strdup, strndup | Duplicates a string |
| strncat | Concatenates two strings |
| strncpy | Copies a string |
| stpcpy | Copies a string returning a pointer to its end |
Finding Tokens in a String
|
Function |
Description |
| strtok_r, strtok | Extracts tokens from strings |
| strsep | Extracts tokens from strings |
Search Functions
|
Function |
Description |
| strpbrk | Searches a string for any of a set of characters |
| strspn | Searches a string for a set of characters |
| memchr | Scans memory for a character |
| strchr, strrchr | Locates the first occurrence of c (converted to a char ) in the string pointed to by s. |
| strcspn | Searches a string for a set of characters |
| strcasestr | Locates the first occurrence of the null-terminated string little in the null-terminated string big, but ignores the case of both strings. |
| strstr | Locates a substring |
String Length
|
Function |
Description |
| strlen | Calculates the length of a string |
| strnlen | Determines the length of a fixed-size string |
String/Array Comparison
|
Function |
Description |
| memcmp | Compares memory areas |
| bcmp | Compares byte sequences |
| strcmp, strncmp | Compares two strings |
| strcasecmp, strncasecmp | Compares two strings ignoring case |