Message190374
+1 for removing all occurrences of "register".
Regarding the grammar, we have:
function-definition:
declaration-specifiers-opt declarator declaration-list-opt compound-statement
So I think that "part of an external declaration" refers to the outermost
declaration-specifiers, not to some inner declaration-specifiers that are
part of the parameter-type-list. Otherwise it would also be forbidden to
use "register" in the compound-statement. ;)
Thus, IMO this is legal:
a) int f (register int x) {return x;}
But this is not allowed:
b) register int f (int x) {return x;}
As Mark said, a) does not alter the calling convention. It's just a request
to keep x in a register in the function body once the parameter passing is
done. |
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Date |
User |
Action |
Args |
2013-05-30 18:03:34 | skrah | set | recipients:
+ skrah, rhettinger, mark.dickinson, pitrou, larry, Arfrever, Mark.Shannon, serhiy.storchaka |
2013-05-30 18:03:34 | skrah | set | messageid: <1369937014.05.0.46520102477.issue18090@psf.upfronthosting.co.za> |
2013-05-30 18:03:34 | skrah | link | issue18090 messages |
2013-05-30 18:03:33 | skrah | create | |
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