====== ctype.h ======

==== character classification ====

^ Function                ^ Description                ^
| [[c:ctype.h:isalnum|]]        |checks if char is alphanumeric       |
| [[c:ctype.h:isalpha|]]        |checks if char is alphabetic         |
| [[c:ctype.h:isascii|]]        |checks if char is an ascii char      |
| [[c:ctype.h:isblank|]]        |checks if char is blank              |
| [[c:ctype.h:iscntrl|]]        |checks if char is a control char     |
| [[c:ctype.h:isdigit|]]        |checks if char is a digit            |
| [[c:ctype.h:isgraph|]]        |checks if char is printing character except space (' ')           |
| [[c:ctype.h:islower|]]        |checks if char is lowercase          |
| [[c:ctype.h:isprint|]]        |checks if char is printable          |
| [[c:ctype.h:ispunct|]]        |checks if char is a punctuation char |
| [[c:ctype.h:isspace|]]        |checks if char is space              |
| [[c:ctype.h:isupper|]]        |checks if char is uppercase          |
| [[c:ctype.h:isxdigit|]]       |checks if char is hexadecimal        |



==== convert functions ====

^ Function                ^ Description                ^
| [[c:ctype.h:toascii|]]        |converts a char to ascii      |
| [[c:ctype.h:tolower|]]        |converts a char to lowercase  |
| [[c:ctype.h:toupper|]]        |converts a char to uppercase  |