Programme crashes while deallocating a character array

Question

When I run the .exe being created with the below code in debug mode , it shows some assertion failure and the programme crashes But when i run the same exe created from the rele

Answer 1

 char *buf  = new char[6];   //pre-allocated buffer
 strncpy(buf, "hello", 6);
 delete [] buf;

buf = "hello"; would change the buf's value, from a pointer to new char[6] To a pointer point to "hello", a block of memory not in heap.