04-01-2023, 07:54 AM
The ctype.h header is allready included in QB64pe and its functions can easily accessed via a declare library block.
For more informations/other functions see https://qb64phoenix.com/qb64wiki/index.php/C_Libraries
Code: (Select All)
DECLARE LIBRARY
'ctype.h
FUNCTION isalnum% (BYVAL c AS INTEGER) 'is an alphabet letter(isalpha(c) or isdigit(c))
FUNCTION isalpha% (BYVAL c AS INTEGER) 'is letter (isupper(c) or islower(c))
FUNCTION isdigit% (BYVAL c AS INTEGER) 'is a decimal digit
FUNCTION isgraph% (BYVAL c AS INTEGER) 'is a printing character other than space
FUNCTION islower% (BYVAL c AS INTEGER) 'is a lower-case letter
FUNCTION isprint% (BYVAL c AS INTEGER) 'is printing character. ASCII: &H20 (" ") to &H7E (~)
FUNCTION ispunct% (BYVAL c AS INTEGER) 'is printing character other than space, letter, digit
FUNCTION isspace% (BYVAL c AS INTEGER) 'is space, formfeed, newline, return, tab, vertical tab
FUNCTION isupper% (BYVAL c AS INTEGER) 'is upper-case letter
FUNCTION isxdigit% (BYVAL c AS INTEGER) 'is a hexdecimal digit character(0 thru 9 or A thru F)
END DECLARE
LINE INPUT "Gimme a char: "; c$
IF isalpha%(ASC(c$)) THEN
PRINT "Is alpha."
ELSE
PRINT "Is NOT alpha."
END IF
END
GuiTools, Blankers & other Projects:
https://qb64phoenix.com/forum/forumdisplay.php?fid=32
Libraries & useful Functions:
https://qb64phoenix.com/forum/forumdisplay.php?fid=23
https://qb64phoenix.com/forum/forumdisplay.php?fid=32
Libraries & useful Functions:
https://qb64phoenix.com/forum/forumdisplay.php?fid=23