## modules/up/src/gnug++/int.defs.h

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## FUNCTIONS

This source file includes following functions.

1. intEQ
2. intLE
3. intCMP
4. intHASH
5. HASHTABLE_TOO_CROWDED

       1 // This may look like C code, but it is really -*- C++ -*-
       2 /*
       3 Copyright (C) 1988 Free Software Foundation
       4     written by Doug Lea (dl@rocky.oswego.edu)
       5
       6 This file is part of the GNU C++ Library.  This library is free
       7 software; you can redistribute it and/or modify it under the terms of
       8 the GNU Library General Public License as published by the Free
       9 Software Foundation; either version 2 of the License, or (at your
      10 option) any later version.  This library is distributed in the hope
      11 that it will be useful, but WITHOUT ANY WARRANTY; without even the
      12 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
      13 PURPOSE.  See the GNU Library General Public License for more details.
      14 You should have received a copy of the GNU Library General Public
      15 License along with this library; if not, write to the Free Software
      16 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
      17 */
      18
      19
      20 #ifndef _intdefs_h
      21 #define _intdefs_h 1
      22
      23
      24 // equality operator
      25 #ifndef intEQ
      26 #define intEQ(a, b)  ((a) == (b))
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      27 #endif
      28
      29 // less-than-or-equal
      30 #ifndef intLE
      31 #define intLE(a, b)  ((a) <= (b))
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      32 #endif
      33
      34 // comparison : less-than -> < 0; equal -> 0; greater-than -> > 0
      35 #ifndef intCMP
      36 #define intCMP(a, b) ( a - b )
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      37 #endif
      38
      39 // hash function
      40 #ifndef intHASH
      41 //extern unsigned int hash(int );
      42 #define intHASH(x)  (x)
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      43 #endif
      44
      45 // initial capacity for structures requiring one
      46
      47 #ifndef DEFAULT_INITIAL_CAPACITY
      48 #define DEFAULT_INITIAL_CAPACITY 100
      49 #endif
      50
      51 // HASHTABLE_TOO_CROWDED(COUNT, SIZE) is true iff a hash table with COUNT
      52 // elements and SIZE slots is too full, and should be resized.
      53 // This is so if available space is less than 1/8.
      54
      55 #define HASHTABLE_TOO_CROWDED(COUNT, SIZE) ((SIZE) - ((SIZE) >> 3) <= (COUNT))
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      56
      57 #endif

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