memory corruption

#include "mathalizer.h"



int multiply(int x, int y)

{

   return x*y;

}



int add(int x, int y)

{

   return x+y;

}



int ** create_table(int size, int (* oper) (int,int))

{

   int x;

   int y;

   int **array;

   if(size<1) return NULL;

   array = (int **)malloc(size*sizeof(int*));

   if(array==NULL) return 1;



   for(x=0;x   {

       array[x]=(int*)malloc(size*sizeof(int));

   }

  

   for(x=0;x   {

       for(y=0;y       {

           array[x][y]=(* oper)(x,y);

       }     

   }

	

   return array;

}



int save_table(FILE * fp, int ** array, int size)

{

   int x;

  

   for(x=0;x   {

       fwrite(array[x],sizeof(int),size,fp);    

   }

   fclose (fp);

 

   return 1;       

}



int ** load_table(FILE * file, int size)

{

   int x;

   int fread_return_code_2;

   int **array2;

   array2 = (int **)malloc(size*sizeof(int*));

   if(array2==NULL) return 1;



   for(x=0;x   {

       array2[x]=(int*)malloc(size*sizeof(int));

   }

	

   for(x=0;x   {

       fread_return_code_2=fread(array2[x],sizeof(int),size,file);

   }

   if(fread_return_code_2!=size) return 1;

   fclose(file);

	

   return array2;

}