delete multidimensional arrays

Question

In C++ FAQ, the [16.16] gives the following example,

void manipulateArray(unsigned nrows, unsigned ncols[])
{
   typedef Fred* FredPtr;
   FredPtr* matrix = new          


        

Answer 1

The catch block in the try...catch is there to delete the matrix if an exception was thrown, and then re-throw the exception.

If no exception is thrown, the catch block never gets hit, and the matrix has to be deleted on the way out through the normal exit of the routine.