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[glibc/history.git] / include / values.h
blobc8b376f186afd0335b8ed98d02cc0cdb963cdbb5
1 /* Old compatibility names for <limits.h> and <float.h> constants.
2 Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 /* This interface is obsolete. New programs should use
21 <limits.h> and/or <float.h> instead of <values.h>. */
23 #ifndef _VALUES_H
24 #define _VALUES_H 1
26 #include <features.h>
28 #include <limits.h>
30 #define _TYPEBITS(type) (sizeof (type) * CHAR_BIT)
32 #define CHARBITS _TYPEBITS (char)
33 #define SHORTBITS _TYPEBITS (short int)
34 #define INTBITS _TYPEBITS (int)
35 #define LONGBITS _TYPEBITS (long int)
36 #define PTRBITS _TYPEBITS (char *)
37 #define DOUBLEBITS _TYPEBITS (double)
38 #define FLOATBITS _TYPEBITS (float)
40 #define MINSHORT SHRT_MIN
41 #define MININT INT_MIN
42 #define MINLONG LONG_MIN
44 #define MAXSHORT SHRT_MAX
45 #define MAXINT INT_MAX
46 #define MAXLONG LONG_MAX
48 #define HIBITS MINSHORT
49 #define HIBITL MINLONG
52 #include <float.h>
54 #define MAXDOUBLE DBL_MAX
55 #define MAXFLOAT FLT_MAX
56 #define MINDOUBLE DBL_MIN
57 #define MINFLOAT FLT_MIN
58 #define DMINEXP DBL_MIN_EXP
59 #define FMINEXP FLT_MIN_EXP
60 #define DMAXEXP DBL_MAX_EXP
61 #define FMAXEXP FLT_MAX_EXP
64 #ifdef __USE_MISC
65 /* Some systems define this name instead of CHAR_BIT or CHARBITS. */
66 # define BITSPERBYTE CHAR_BIT
67 #endif
69 #endif /* values.h */