Built-in means of compilers

Compilers allow to solve some problems of searching defect code. They often have built-in different mechanisms for diagnosing errors observed. For example, in Microsoft Visual C++ 2005 the following keys may be useful: /Wp64, /Wall, and in SunStudio C++ key –xport64.

Unfortunately, the possibilities they provide are often not enough and you should not rely only on them. But in any case it is highly recommended to enable the corresponding options of a compiler for diagnosing errors in the 64-bit code.