BSD 4_3_Reno release

[unix-history] / usr / src / lib / libc / gen / isctype.c

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement:  ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)isctype.c   5.2 (Berkeley) 6/1/90";
#endif /* LIBC_SCCS and not lint */

#define _ANSI_LIBRARY
#include <ctype.h>

#undef isalnum
isalnum(c)
       int c;
{
       return((_ctype_ + 1)[c] & (_U|_L|_N));
}

#undef isalpha
isalpha(c)
       int c;
{
       return((_ctype_ + 1)[c] & (_U|_L));
}

#undef iscntrl
iscntrl(c)
       int c;
{
       return((_ctype_ + 1)[c] & _C);
}

#undef isdigit
isdigit(c)
       int c;
{
       return((_ctype_ + 1)[c] & _N);
}

#undef isgraph
isgraph(c)
       int c;
{
       return((_ctype_ + 1)[c] & (_P|_U|_L|_N));
}

#undef islower
islower(c)
       int c;
{
       return((_ctype_ + 1)[c] & _L);
}

#undef isprint
isprint(c)
       int c;
{
       return((_ctype_ + 1)[c] & (_P|_U|_L|_N|_B));
}

#undef ispunct
ispunct(c)
       int c;
{
       return((_ctype_ + 1)[c] & _P);
}

#undef isspace
isspace(c)
       int c;
{
       return((_ctype_ + 1)[c] & _S);
}

#undef isupper
isupper(c)
       int c;
{
       return((_ctype_ + 1)[c] & _U);
}

#undef isxdigit
isxdigit(c)
       int c;
{
       return((_ctype_ + 1)[c] & (_N|_X));
}

#undef tolower
tolower(c)
       int c;
{
       return((c) - 'A' + 'a');
}

#undef toupper
toupper(c)
       int c;
{
       return((c) - 'a' + 'A');
}