number and position of "__ " in code ... question
if you read through some kernel code or somethig simillar..u will find they have seperated the different spaces with different number of "_" and at different positions...
eg : __KERNEL__DATA_
DOES this have any significance?
Most (if not all?) C predefined macros have all this form (double underscore as prefix and suffix).
for example ___LINE___ and __FILE__
__KERNEL__ is not predefined by the compiler, but set in the linux kernel makefile.
It follows the same syntaxic rule and objective: prevent any clash with custom code macros.
Not sure about the __KERNEL__DATA_ though, didn't find it anywhere.
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