how does the compiler handle this ?

General and Gameplay Programming Programming

2 comments, last by Fred304 18 years, 11 months ago

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May 27, 2005 12:02 PM

head1.h include head2.h and head2.h include head1.h but this way all is ok ,so how does the compler handle this ?

382

May 27, 2005 12:12 PM

include guards

#ifndef __SOME_COOL_NAME#define __SOME_COOL_NAME// ...#endif

Everything between the #ifndef and the #endif will only be included once.

2,021

May 27, 2005 02:22 PM

And if you don't have the include guards, then the compiler will give an error after a certain depth (around 100 recursions sounds sensible)

382

May 27, 2005 03:05 PM

Hm, after giving this a second thought, I think the compiler does not handle this it all - the preprocessor does.

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