sarray.c

来自「任意给定三维空间的点集」· C语言 代码 · 共 112 行

/*--------------------------------------------------------------------
 * cutting - compute palanr cuttings
 * Copyright (C) 1998 Sariel Har-Peled
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
\*--------------------------------------------------------------------*/

/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
 * array.c -
 *    Implement a templated array
\*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/

#include  <stdio.h>
#include  <stdlib.h>
#include  <string.h>
#include  <assert.h>

#include  "_generic.h"
#include  "real.h"
#include  "sarray.h"


/*=========================================================================
 * Static Debug Variables
*=========================================================================*/
//SOURCE__FILE;


/*=========================================================================
 * Start of Code
*=========================================================================*/


GLOBAL int        searchArrayEntry( const void  * ptr, int  size,
                                    int   numEnt, const void  * var )
{
    int         ind;

    for  ( ind = 0; ind < numEnt; ind++ ) {
        if  ( memcmp( ptr, var, size ) == 0 ) {
            return   ind;
        }
        ptr = ADDR( (void *)ptr, size );
    }

    return  -1;
}


GLOBAL int        searchTableEntry( const void  * ptr,
                                    int           localOffset,
                                    int           localSize,
                                    int           size,
                                    int           numEnt,
                                    const void  * var )
{
    int         ind;

    for  ( ind = 0; ind < numEnt; ind++ ) {
        if  ( memcmp( ADDR( (void *)ptr, localOffset ), var, localSize ) == 0 ) {
            return   ind;
        }
        ptr = ADDR( (void *)ptr, size );
    }

    return  -1;
}


GLOBAL int        calcEntriesNum( void    * _ptr, int      size )
{
    int                     entriesNum, ind;
    char                  * ptr;
    bool                    fZero;

    ptr = (char *)_ptr;
    entriesNum = 0;
    do {
        fZero = true;
        for  ( ind = 0; ind < size; ind++ )
            if  ( ptr[ ind ] ) {
                fZero = false;
                break;
            }

        if  ( fZero )
            return   entriesNum;

        entriesNum++;
        ptr = ADDR( ptr, size );
    }  while  ( 1 );
}


/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
 *
 * array.c - End of File
\*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/