Zilog EZ80F916 - Manual (Page 366)

UM014423-0607 C Standard Library
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
346
isspace
Tests for the following white-space characters: space (' '), form feed ('\f'), new line ('\n'),
carriage return ('\r'), horizontal tab ('\t'), or vertical tab ('\v').
Synopsis
#include
int isspace(int c);
Example
int r;
char c='';
r=isspace(c);
isupper
Tests for any uppercase letter 'A' to 'Z'.
Synopsis
#include
int isupper(int c);
Example
int r;
char c='a';
r=isupper(c);
isxdigit
Tests for any hexadecimal digit '0' to '9' and 'A' to 'F'.
Synopsis
#include
int isxdigit(int c);
Example
int r;
char c='f';
r=isxdigit(c);