DragonFly On-Line Manual Pages

CTYPE(3)	      DragonFly Library Functions Manual	      CTYPE(3)

NAME
     isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, islower,
     isprint, ispunct, isspace, isupper, isxdigit, toascii, tolower, toupper
     -- character classification and mapping functions

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <ctype.h>

     int
     isalnum(int c);

     int
     isalpha(int c);

     int
     isascii(int c);

     int
     isblank(int c);

     int
     iscntrl(int c);

     int
     isdigit(int c);

     int
     isgraph(int c);

     int
     islower(int c);

     int
     isprint(int c);

     int
     ispunct(int c);

     int
     isspace(int c);

     int
     isupper(int c);

     int
     isxdigit(int c);

     int
     toascii(int c);

     int
     tolower(int c);

     int
     toupper(int c);

DESCRIPTION
     The above functions perform character tests and conversions on the inte-
     ger c.  They are available as macros, defined in the include file
     <ctype.h>, or as true functions in the C library.	See the specific man-
     ual pages for more information.

SEE ALSO
     isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3),
     isgraph(3), islower(3), isprint(3), ispunct(3), isspace(3), isupper(3),
     isxdigit(3), toascii(3), tolower(3), toupper(3), ascii(7)

STANDARDS
     These functions, with the exception of isascii(), isblank() and
     toascii(), conform to ISO/IEC 9899:1990 (``ISO C90'').

DragonFly 3.5		       October 21, 2006 		 DragonFly 3.5