We already saw how to manage pointers to a resource in the Managing pointers to classes that do not leave scope recipe. But, when we deal with arrays, we need to call delete[] instead of a simple delete. Otherwise, there will be a memory leak. Take a look at the following code:
void may_throw1(char ch);
void may_throw2(const char* buffer);
void foo() {
// we cannot allocate 10MB of memory on stack,
// so we allocate it on heap
char* buffer = new char[1024 * 1024 * 10];
// Oops. Here comes some code, that may throw.
// It was a bad idea to use raw pointer as the memory may leak!!
may_throw1(buffer[0]);
may_throw2(buffer);
delete[] buffer;
}
