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Diffstat (limited to 'lib/intprops.h')
| -rw-r--r-- | lib/intprops.h | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/lib/intprops.h b/lib/intprops.h deleted file mode 100644 index 65280b15..00000000 --- a/lib/intprops.h +++ /dev/null | |||
| @@ -1,65 +0,0 @@ | |||
| 1 | /* intprops.h -- properties of integer types | ||
| 2 | |||
| 3 | Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. | ||
| 4 | |||
| 5 | This program is free software; you can redistribute it and/or modify | ||
| 6 | it under the terms of the GNU General Public License as published by | ||
| 7 | the Free Software Foundation; either version 2, or (at your option) | ||
| 8 | any later version. | ||
| 9 | |||
| 10 | This program 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 | ||
| 13 | GNU General Public License for more details. | ||
| 14 | |||
| 15 | You should have received a copy of the GNU General Public License | ||
| 16 | along with this program; if not, write to the Free Software Foundation, | ||
| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | ||
| 18 | |||
| 19 | /* Written by Paul Eggert. */ | ||
| 20 | |||
| 21 | #include <limits.h> | ||
| 22 | |||
| 23 | /* The extra casts in the following macros work around compiler bugs, | ||
| 24 | e.g., in Cray C 5.0.3.0. */ | ||
| 25 | |||
| 26 | /* True if the arithmetic type T is an integer type. bool counts as | ||
| 27 | an integer. */ | ||
| 28 | #define TYPE_IS_INTEGER(t) ((t) 1.5 == 1) | ||
| 29 | |||
| 30 | /* True if negative values of the signed integer type T use two's | ||
| 31 | complement, ones' complement, or signed magnitude representation, | ||
| 32 | respectively. Much GNU code assumes two's complement, but some | ||
| 33 | people like to be portable to all possible C hosts. */ | ||
| 34 | #define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1) | ||
| 35 | #define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0) | ||
| 36 | #define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1) | ||
| 37 | |||
| 38 | /* True if the arithmetic type T is signed. */ | ||
| 39 | #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) | ||
| 40 | |||
| 41 | /* The maximum and minimum values for the integer type T. These | ||
| 42 | macros have undefined behavior if T is signed and has padding bits. | ||
| 43 | If this is a problem for you, please let us know how to fix it for | ||
| 44 | your host. */ | ||
| 45 | #define TYPE_MINIMUM(t) \ | ||
| 46 | ((t) (! TYPE_SIGNED (t) \ | ||
| 47 | ? (t) 0 \ | ||
| 48 | : TYPE_SIGNED_MAGNITUDE (t) \ | ||
| 49 | ? ~ (t) 0 \ | ||
| 50 | : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))) | ||
| 51 | #define TYPE_MAXIMUM(t) \ | ||
| 52 | ((t) (! TYPE_SIGNED (t) \ | ||
| 53 | ? (t) -1 \ | ||
| 54 | : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))) | ||
| 55 | |||
| 56 | /* Bound on length of the string representing an integer type or expression T. | ||
| 57 | Subtract 1 for the sign bit if t is signed; log10 (2.0) < 146/485; | ||
| 58 | add 1 for integer division truncation; add 1 more for a minus sign | ||
| 59 | if needed. */ | ||
| 60 | #define INT_STRLEN_BOUND(t) \ | ||
| 61 | ((sizeof (t) * CHAR_BIT - 1) * 146 / 485 + 2) | ||
| 62 | |||
| 63 | /* Bound on buffer size needed to represent an integer type or expression T, | ||
| 64 | including the terminating null. */ | ||
| 65 | #define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1) | ||