31 May
1999
31 May
'99
1:01 p.m.
"benben xiao" xiaoxiaoben@hotmail.com writes:
When I see fiasco kernel, I have a simple question: I don't know #if 0 ... ... #endif what do '0' mean there?
This is a way to comment out unused code: Everything between "#if 0" and "#endif" is stripped by the preprocessor, and is ignored by the compiler.
For more information about the C/C++ preprocessor, please refer to the GNU CPP manual. On most systems, you can browse it with "info cpp". The answer to your particular question is in "info cpp conditional deletion".
Michael
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