| atof() |
converts a string to a double |
| atoi() |
converts a string to an integer |
| atol() |
converts a string to a long |
| isalnum() |
true if alphanumeric |
| isalpha() |
true if alphabetic |
| iscntrl() |
true if control character |
| isdigit() |
true if digit |
| isgraph() |
true if a graphical character |
| islower() |
true if lowercase |
| isprint() |
true if a printing character |
| ispunct() |
true if punctuation |
| isspace() |
true if space |
| isupper() |
true if uppercase character |
| isxdigit() |
true if a hexidecimal character |
| memchr() |
searches an array for the first occurance of a character |
| memcmp() |
compares two buffers |
| memcpy() |
copies one buffer to another |
| memmove() |
moves one buffer to another |
| memset() |
fills a buffer with a character |
| strcat() |
concatenates two strings |
| strchr() |
finds the first occurance of a character in a string |
| strcmp() |
compares two strings |
| strcoll() |
compares two strings in accordance to the current locale |
| strcpy() |
copies one string to another |
| strcspn() |
searches one string for any characters in another |
| strerror() |
returns a text version of a given error code |
| strlen() |
returns the length of a given string |
| strncat() |
concatenates a certain amount of characters of two strings |
| strncmp() |
compares a certain amount of characters of two strings |
| strncpy() |
copies a certain amount of characters from one string to another |
| strpbrk() |
finds the first location of any character in one string, in another string |
| strrchr() |
finds the last occurance of a character in a string |
| strspn() |
returns the length of a substring of characters of a string |
| strstr() |
finds the first occurance of a substring of characters |
| strtod() |
converts a string to a double |
| strtok() |
finds the next token in a string |
| strtol() |
converts a string to a long |
| strtoul() |
converts a string to an unsigned long |
| strxfrm() |
converts a substring so that it can be used by string comparison functions |
| tolower() |
converts a character to lowercase |
| toupper() |
converts a character to uppercase |