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/*
* === FUNCTION ======================================================================
* Name: calloc_int_matrix
* Description: Allocate a dynamic int-matrix of size rows*columns; return a pointer.
* =====================================================================================
*/
int**
calloc_int_matrix ( int rows, int columns )
{
int i;
int **m;
m = calloc ( rows, sizeof(int*) ); /* allocate pointer array */
assert( m != NULL ); /* abort if allocation failed */
*m = calloc ( rows*columns, sizeof(int) ); /* allocate data array */
assert(*m != NULL ); /* abort if allocation failed */
for ( i=1; i<rows; i+=1 ) /* set pointers */
m[i] = m[i-1] + columns;
return m;
} /* ---------- end of function calloc_int_matrix ---------- */
/*
* === FUNCTION ======================================================================
* Name: free_int_matrix
* Description: Free a dynamic int-matrix.
* =====================================================================================
*/
void
free_int_matrix ( int **m )
{
free(*m); /* free data array */
free( m); /* free pointer array */
return ;
} /* ---------- end of function free_int_matrix ---------- */
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