The Old "new"

Remember the good old C days,

When after memory allocating code,

We had to check the pointer against NULL, just to make sure that the memory has actually been allocated.

int * arr = (int*)malloc(sizeof(int)*10);

if(arr==NULL)

{

// No memory allocated

}

Many people carry this habit from C to C++, which is not all together right.

As in CPP new operator throws an error, "bad_alloc" to be precise , in the case where memory was not allocated.

But if u like living in old days, and insist on comparing the pointer to NULL to check whether memory has been allocated or not. You can use

A * a = new(nothrow) A();

Now you can keep on reliving those times.

On a more serious note, this practise is not recommended in C++, but in some projects developed before C++ introduced "exception handling", this practise has to be continued.