Weird Problem

//----------------------------------------------------------------------------
typedef struct _point
{
float x,y,z;
float tex_x,tex_y;
float norm_x,norm_y,norm_z;
}point;

typedef struct _poly
{
int r,g,b;
int texture_num;
point vertices[4];
bool quad;
}poly;

typedef struct _building
{
char name[255];
char type;
int wealth,density,pop;//pop = residents/jobs
unsigned int *textures;
poly *polys;
int xsize,ysize,num_textures,num_polys;
}bldg,building;
//-----------------------------------------------------------------------------
bool load_building(building &b,char *filename);
void draw_building(building b);
void free_building(building &b);
//-----------------------------------------------------------------------------
bool load_building(building &b,char *filename)
{
FILE *fp;
int ctr,dx,tmp,tmp_x,tmp_y;
unsigned char *tmp_mem;
fp = fopen(filename,"r");
 if(fp == NULL)
 {
 MessageBox(NULL,"Doesn't exist","-",MB_OK);
 return false;
 }
 if(fgetc(fp) != 'S')
 {
 MessageBox(NULL,"Invalid","-",MB_OK);
 fclose(fp);
 return false;
 }
fscanf(fp,"\nname:%s",&b.name);
fscanf(fp,"\nxsize:%d",&b.xsize);
fscanf(fp,"\nysize:%d",&b.ysize);
fscanf(fp,"\ntextures:%d",&b.num_textures);
fscanf(fp,"\npolys:%d",&b.num_polys);
b.polys =(poly*)calloc(b.xsize * b.ysize , sizeof(poly));
b.textures = (unsigned int *)calloc(b.num_textures,sizeof(unsigned int));
 if(b.polys == NULL)
 {
 MessageBox(NULL,"Can't Allocate Memory","-",MB_OK);
 fclose(fp);
 return false;
 }
 if(b.textures == NULL)
 {
 MessageBox(NULL,"Can't Allocate Memory","-",MB_OK);
 fclose(fp);
 return false;
 }

 for(ctr=0;ctr  
Now everything runs fine when I compile and run it in VC++ 6.0 but when I run it from the generated executabe with any building file the x coordinate of the first vertex of the second polygon is set to 0 for some reasons. Anybody know why this happens?

[edited by - santonel on March 3, 2004 11:31:04 PM]