VC + + Practical macro definition

Objective:

In the daily programming work, often define some useful macro convenient call, the article will collect some common macros for your reference, welcome everyone to discuss and add!

The most common use of pointer release is the safe release of pointers. Corresponds to the release of the new # define RELEASEPTR (PTR) {\
if (Ptr! = NULL) \
{\
Delete ptr;\
PTR = null;\
}\
}
For the release of the new array, # define RELEASEPTREX (PTR) {\
if (Ptr! = NULL) \
{\
Delete[] Ptr;\
PTR = null;\
}\
}
A simple use principle is: New and delete, new[] and delete[] corresponding to use
Examples of use: char *pdata = new structxxxx, ...//Processing engineering releaseptr (PDATA);

Char *pdata = new char[100];...//processing engineering Releaseptrex (PDATA);

VC + + Practical macro definition