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Software Vault: The Gold Collection
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Software Vault - The Gold Collection (American Databankers) (1993).ISO
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cdr49
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3d_lib.zip
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NF.C
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C/C++ Source or Header
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1993-05-09
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1KB
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59 lines
/* Create new face
Copyright (c) 1988 by Gus O'Donnell
Revision history:
Version 1.00 February 29, 1988 As released.
Version 1.01 March 20, 1988 Created libraries for all
memory models
*/
#include "3d.h"
#include <alloc.h>
#include <float.h>
#include <math.h>
#include <stdio.h>
int new_face (FACE *this_face)
/* Create a new face. The initial data structure looks like this:
FACE o X
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V
CORNER o X
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+---+
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V
CORNER X X
Where 'X' is the NULL pointer.
The function returns an integer status as follows:
0 - operation successful
1 - cannot allocate memory
*/
{
CORNER *chandle1,*chandle2; /* Handles for head and tail nodes of
CORNER list */
/* Allocate memory. Return a 1 if unsuccessful. */
if (!(chandle1 = (CORNER *)malloc(sizeof(CORNER)))) return(1);
if (!(chandle2 = (CORNER *)malloc(sizeof(CORNER)))) return(1);
this_face -> first = chandle1;
this_face -> next = NULL;
chandle1 -> this = NULL;
chandle1 -> next = chandle2;
chandle2 -> this = NULL;
chandle2 -> next = NULL;
return(0);
}