User manual

mikroPascal PRO for dsPIC30/33 and PIC24
MikroElektronika
658
isupper
Prototype
function isupper(character : byte) : word
Description Function returns 0xFF if the character is an uppercase letter (A-Z), otherwise returns zero.
Example
res := isupper(‘A’); // returns 0xFF
res := isupper(‘a’); // returns 0
isxdigit
Prototype
function isxdigit(character : byte) : word
Description Function returns 0xFF if the character is a hex digit (0-9, A-F, a-f), otherwise returns zero.
Example
res := isxdigit(‘A’); // returns 0xFF
res := isxdigit(‘P’); // returns 0
toupper
Prototype
function toupper(character : byte) : byte
Description If the character is a lowercase letter (a-z), the function returns an uppercase letter. Otherwise, the
function returns an unchanged input parameter.
Example
res := toupper(‘a’); // returns A
res := toupper(‘B’); // returns B
tolower
Prototype
function tolower(character : byte) : byte
Description If the character is an uppercase letter (A-Z), function returns a lowercase letter. Otherwise, function
returns an unchanged input parameter.
Example
res := tolower(‘A’); // returns a
res := tolower(‘b’); // returns b