for loop variable scope

[llvmbot]

Bugzilla Link	11324
Resolution	INVALID
Resolved on	Nov 07, 2011 17:45
Version	2.7
OS	Linux
Reporter	LLVM Bugzilla Contributor
CC	@DougGregor

Extended Description

the second "i" in

for (int i = 0; i < 10; ++i) {
const int i = -1;
...
}

is flagged as redefinition error, while imho it should be regarded as equivalent to standard shadowing:

int i = 0;
{
const int i = -1;
...
}

[DougGregor]

The C++ standard specifically states that this code is ill-formed per C++ 6.5.2p1 (which redirects to 6.4p3).

[llvmbot]

ok, thanks! it seems it has been recently fixed also in gcc http://gcc.gnu.org/bugzilla/show_bug.cgi?id=2288 (after more than 10 years...).