C + + Memory leak checking method

Overloading Global New

Can write multiple versions of new, but only a delete;
Overloading the global new will cause some mismatched crosstalk, especially in the case of third-party libraries;

my Way out.

Reload new for a single class;
Primitive types cannot be overloaded, so the use of a method similar to malloc is allocated;
My Cfan Open Source Library implements this approach

operating system hook mechanism

http://my.oschina.net/chunquedong/blog/271248
These are not cross-platform, use is not convenient;

Valgrind and other tools

Non-cross-platform;
It is difficult to provide timely feedback unless continuous integration is achieved;
Sometimes it causes the program to crash; it is easy to make false positives (perhaps the implementation of the tool itself, but these three are problematic: Valgrind, Rational Purify, XCode insruments);