MirOS Manual: toupper(3), _toupper(3)

TOUPPER(3)                 BSD Programmer's Manual                  TOUPPER(3)

NAME

     toupper, _toupper - lower case to upper case letter conversion

SYNOPSIS

     #include <ctype.h>

     int
     toupper(int c);

     int
     _toupper(int c);

DESCRIPTION

     The toupper() function converts a lower-case letter to the corresponding
     upper-case letter. The _toupper() function is identical to toupper() ex-
     cept that c must be a lower-case letter.

RETURN VALUES

     If the argument to the toupper() function is a lower-case letter, the
     corresponding upper-case letter is returned if there is one; otherwise
     the argument is returned unchanged. If the argument to the _toupper()
     function is a lower-case letter, the corresponding upper-case letter is
     returned; otherwise the output is undefined.

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), stdio(3), toascii(3), tolower(3), ascii(7)

STANDARDS

     The toupper() function conforms to ANSI X3.159-1989 ("ANSI C").

MirOS BSD #10-current          August 15, 1997                               1

Generated on 2013-04-27 00:20:00 by $MirOS: src/scripts/roff2htm,v 1.77 2013/01/01 20:49:09 tg Exp $

These manual pages and other documentation are copyrighted by their respective writers; their source is available at our CVSweb, AnonCVS, and other mirrors. The rest is Copyright © 2002‒2013 The MirOS Project, Germany.
This product includes material provided by Thorsten Glaser.

This manual page’s HTML representation is supposed to be valid XHTML/1.1; if not, please send a bug report – diffs preferred.