30. Dynamic Memory Allocation-i

Question.1

A developer creates a Sensor object using malloc in a C++ project:

Sensor* s = (Sensor*)malloc(sizeof(Sensor));
s->init();

Another developer uses new:

Sensor* s = new Sensor();

What critical difference does new provide over malloc?

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new allocates memory and calls the constructor
new allocates on the stack; malloc on the heap
if memory allocation failed, new returns nullptr while malloc throws an error
No difference