1 | /* -*-c++-*- */ |
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2 | /******************************************************************* |
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3 | * File: mylimits.h |
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4 | * Purpose: limits.h configuration for omalloc |
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5 | * Author: hannes (Hans Schoenemann) |
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6 | * Created: 03/01 |
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7 | * Version: $Id: mylimits.h.in,v 1.6 2001-05-17 14:28:08 Singular Exp $ |
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8 | *******************************************************************/ |
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9 | #ifndef MYLIMITS_H |
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10 | #define MYLIMITS_H |
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11 | /******************************************************************* |
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12 | * Defines which are set by configure |
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13 | ******************************************************************/ |
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14 | /* Define sizeof(long) */ |
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15 | #define SIZEOF_LONG 4 |
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16 | /* Define sizeof(int) */ |
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17 | #define SIZEOF_INT 4 |
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18 | /* Define sizeof(double) */ |
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19 | #define SIZEOF_DOUBLE 8 |
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20 | /* |
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21 | * ISO C Standard: 4.14/2.2.4.2 Limits of integral types <limits.h> |
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22 | */ |
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23 | |
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24 | /* These assume 8-bit `char's, 16-bit `short int's, |
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25 | and 32-bit `int's and and 32/64-bit `long int's. */ |
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26 | |
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27 | /* maximum value a `signed short int' can hold. */ |
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28 | #define SHRT_MAX 32767 |
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29 | |
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30 | /* Maximum value an `unsigned short int' can hold. (Minimum is 0.) */ |
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31 | #define USHRT_MAX 65535 |
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32 | |
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33 | /* Maximum/minimum value an `signed int' can hold. */ |
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34 | #define INT_MAX 2147483647 |
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35 | #define INT_MIN (-INT_MAX-1) |
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36 | |
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37 | /* Minimum and maximum values a `signed long int' can hold. */ |
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38 | /* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */ |
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39 | #if SIZEOF_LONG == 8 |
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40 | # define LONG_MAX 9223372036854775807L |
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41 | # define ULONG_MAX 18446744073709551615UL |
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42 | #else |
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43 | # define LONG_MAX 2147483647L |
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44 | # ifdef __STDC__ |
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45 | # define ULONG_MAX 4294967295UL |
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46 | # else |
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47 | # define ULONG_MAX 4294967295L |
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48 | # endif |
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49 | #endif |
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50 | #define LONG_MIN (-LONG_MAX - 1L) |
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51 | |
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52 | #endif |
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