<new>
The default behavior of new is to throw an exception of type bad_alloc if out of memory. This can be changed by writing a function (taking no parameters and returning void) and passing it to set_new_handler().
void handler() {throw bad_alloc();} // The default
set_new_handler(handler);
new(nothrow) may be used in place of new. If out of memory, it returns 0 rather than throw bad_alloc. int* p = new(nothrow) int[1000000000]; // p may be 0
The default behavior of new is to throw an exception of type bad_alloc if out of memory. This can be changed by writing a function (taking no parameters and returning void) and passing it to set_new_handler().
void handler() {throw bad_alloc();} // The default
set_new_handler(handler);
new(nothrow) may be used in place of new. If out of memory, it returns 0 rather than throw bad_alloc. int* p = new(nothrow) int[1000000000]; // p may be 0
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