sdcc/device/include/ctype.h

   1 /*-------------------------------------------------------------------------
   2    ctype.h
   3
   4    Philipp Klaus Krause, philipp@informatik.uni-frankfurt.de 2013
   5
   6    (c) 2013 Goethe-Universität Frankfurt
   7
   8    This library is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published by the
  10    Free Software Foundation; either version 2, or (at your option) any
  11    later version.
  12
  13    This library is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this library; see the file COPYING. If not, write to the
  20    Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  21    MA 02110-1301, USA.
  22
  23    As a special exception, if you link this library with other files,
  24    some of which are compiled with SDCC, to produce an executable,
  25    this library does not by itself cause the resulting executable to
  26    be covered by the GNU General Public License. This exception does
  27    not however invalidate any other reasons why the executable file
  28    might be covered by the GNU General Public License.
  29 -------------------------------------------------------------------------*/
  30
  31 #ifndef __STDC_VERSION_CTYPE_H__
  32 #define __STDC_VERSION_CTYPE_H__ __STDC_VERSION__
  33
  34 extern int isalnum (int c);
  35 extern int isalpha (int c);
  36 extern int iscntrl (int c);
  37 extern int isgraph (int c);
  38 extern int isprint (int c);
  39 extern int ispunct (int c);
  40 extern int isspace (int c);
  41 extern int isalnum (int c);
  42 extern int isalnum (int c);
  43 extern int isxdigit (int c);
  44
  45 extern int tolower (int c);
  46 extern int toupper (int c);
  47
  48 /* Provide inline versions for the most used functions for efficiency */
  49 #if __STDC_VERSION__ >= 199901L
  50
  51 inline int isblank (int c)
  52 {
  53   return ((unsigned char)c == ' ' || (unsigned char)c == '\t');
  54 }
  55
  56 #ifdef EOF
  57 _Static_assert(!((unsigned char)EOF == ' ' || (unsigned char)EOF == '\t'), "EOF out of range - ");
  58 #endif
  59
  60 inline int isdigit (int c)
  61 {
  62   return ((unsigned char)c >= '0' && (unsigned char)c <= '9');
  63 }
  64
  65 #ifdef EOF
  66 _Static_assert(!((unsigned char)EOF >= '0' && (unsigned char)EOF <= '9'), "EOF out of range - ");
  67 #endif
  68
  69 inline int islower (int c)
  70 {
  71   return ((unsigned char)c >= 'a' && (unsigned char)c <= 'z');
  72 }
  73
  74 #ifdef EOF
  75 _Static_assert(!((unsigned char)EOF >= 'a' && (unsigned char)EOF <= 'z'), "EOF out of range - ");
  76 #endif
  77
  78 inline int isupper (int c)
  79 {
  80   return ((unsigned char)c >= 'A' && (unsigned char)c <= 'Z');
  81 }
  82
  83 #ifdef EOF
  84 _Static_assert(!((unsigned char)EOF >= 'A' && (unsigned char)EOF <= 'Z'), "EOF out of range - ");
  85 #endif
  86
  87 #else
  88
  89 extern int isblank (int c);
  90 extern int isdigit (int c);
  91 extern int islower (int c);
  92 extern int isupper (int c);
  93
  94 #endif
  95
  96 #endif
  97