Mikroelektronika MIKROE-738 Datenbogen
mikroC PRO for PIC32
MikroElektronika
607
isalnum
Prototype
unsigned int isalnum(char character);
Description Function returns 1 if the
character
is alphanumeric (A-Z, a-z, 0-9), otherwise returns zero.
Example
res = isalnum(‘o’); // returns 1
res = isalnum(‘\r’); // returns 0
isalpha
Prototype
unsigned int isalpha(char character);
Description Function returns 1 if the
character
is alphabetic (A-Z, a-z), otherwise returns zero.
Example
res = isalpha(‘A’); // returns 1
res = isalpha(‘1’); // returns 0
iscntrl
Prototype
unsigned int iscntrl(char character);
Description Function returns 1 if the
character
is a control or delete character(decimal 0-31 and 127), otherwise
returns zero.
Example
res = iscntrl(‘\r’); // returns 1
res = iscntrl(‘o’); // returns 0
isdigit
Prototype
unsigned int isdigit(char character);
Description Function returns 1 if the
character
is a digit (0-9), otherwise returns zero.
Example
res = isdigit(‘o’); // returns 1
res = isdigit(‘1’); // returns 0
isgraph
Prototype
unsigned int isgraph(char character);
Description Function returns 1 if the
character
is a printable, excluding the space (decimal 32), otherwise
returns zero.
Example
res = isgraph(‘o’); // returns 1
res = isgraph(‘ ‘); // returns 0