Constructors and Destructors Overview
When the new operator creates a new object, it calls the operator new() function to obtain the needed storage.
When new cannot allocate storage, it calls a new handler function if one has been installed by a call to set_new_handler(). The set_new_handler() function is defined in <new.h>. Use it to call a new handler you have defined or the default new handler.
The set_new_handler() function has the prototype:
typedef void(*PNH)(); PNH set_new_handler(PNH);
set_new_handler() takes as an argument a pointer to a function (the new handler), which has no arguments and returns void. It returns a pointer to the previous new handler function.
If you do not specify your own set_new_handler() function, new returns the NULL pointer.
The _set_mt_new_handler() function behaves exactly the same way as set_new_handler(), except that it only affects the current thread. When a new handler function needs to be called, the code first checks for a thread new handler. If one has been registered, it is called. If not, the new handler registered with set_new_handler() is called.
Constructors and Destructors
Overview
new Operator
Member Functions and the Global operator
new()
Initializing Objects Created with the new
Operator
Overloaded new and delete
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