Messages in this thread | | | Date | Wed, 02 Jan 2002 13:43:13 -0800 | From | Andrew Morton <> | Subject | Re: Extern variables in *.c files |
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Oliver Xymoron wrote: > > On Wed, 2 Jan 2002, vda wrote: > > > I grepped kernel *.c (not *.h!) files for extern variable definitions. > > Much to my surprize, I found ~1500 such defs. > > > > Isn't that bad C code style? What will happen if/when type of variable gets > > changed? (int->long). > > Yes; Int->long won't change anything on 32-bit machines and will break > silently on 64-bit ones. The trick is finding appropriate places to put > such definitions so that all the things that need them can include them > without circular dependencies. >
Isn't there some way to get the linker to detect the differing sizes?
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