#ifndef _CTYPE_H #define _CTYPE_H /* * Copyright (C) 2012 Michael Brown . * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. */ /** * @file * * Character types * */ static inline int islower ( int c ) { return ( ( c >= 'a' ) && ( c <= 'z' ) ); } static inline int isupper ( int c ) { return ( ( c >= 'A' ) && ( c <= 'Z' ) ); } static inline int toupper ( int c ) { if ( islower ( c ) ) c -= ( 'a' - 'A' ); return c; } extern int isspace ( int c ); #endif /* _CTYPE_H */