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