ABL electronic PIC12 Benutzerhandbuch

mikroC provides a set of standard ANSI C library functions for testing and map-
ping characters.

Note: Not all of the standard functions have been included. Functions have been
implemented according to the ANSI C standard, but certain functions have been
modified in order to facilitate PIC programming.

isalnum

isalpha

iscntrl

isdigit

isgraph

islower

isprint

ispunct

isspace

isupper

isxdigit

toupper

tolower

MikroElektronika:  Development  tools  -  Books  -  Compilers

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mikroC - C Compiler for Microchip PIC microcontrollers

mikroC

making it simple...

isalnum(char character);

Function returns 1 if the 

character

is alphanumeric (A-Z, a-z, 0-9), otherwise returns

zero.