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Home » Tip Bank » C++
Language: C++
Expertise: Intermediate
Jun 25, 2001

Conditional Compilation


In many cross-platform applications, you have code sections that -- depending on the target OS and compiler -- need to be either concealed or compiled. For example, code that uses Win32 APIs must be concealed from a Unix compiler. However, when code is compiled under Windows, it should be visible to the compiler. It's possible to write such code by using #ifdef and #ifndef preprocessor directives. For example:
 
#ifdef __WIN32__
 CreateProcess(
Danny Kalev
 
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