Does anyone know what '#ifndef xxxx' means? I need to know for my C++ class and I can't find it anywhere in my book!
Does anyone know what '#ifndef xxxx' means? I need to know for my C++ class and I can't find it anywhere in my book!
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"Technology has merely provided us with a more efficient means for going backwards" - Aldous Huxley
Someone asked that question recently... this link should take you to the thread ...
ifndef thread
If not, it's on the same page as this question at the moment
Almosthere
"Technology has merely provided us with a more efficient means for going backwards" - Aldous Huxley
oops.. sorry, back buttons not liked by board
"Technology has merely provided us with a more efficient means for going backwards" - Aldous Huxley
The #ifndef directive checks for the existence of a manifest constant. If the constant has not been defined, it is immediately defined and the file is included. If the constant has been defined, everything between the #ifndef and #endif directives is skipped.