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Subject: c++/10852: Old for-scoping rules improperly used?
Date: Mon, 19 May 2003 07:46:00 -0000	[thread overview]
Message-ID: <> (raw)

>Number:         10852
>Category:       c++
>Synopsis:       Old for-scoping rules improperly used?
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Mon May 19 07:46:00 UTC 2003
>Originator:     Derrick Bass
>Release:        gcc-3.3

I think this is a bug in g++; but there is always the possibility that it is a bug in my understanding of C++. In the following code gcc assumes that the variable i at the end of function is the same as in the for loop and produces the following error: In function `void f()': error: name lookup of `i' changed for new ISO `for' scoping error:   using obsolete binding at `i'

I think it should use the variable i from inside the namespace and quit complaining, but as I said, I may just be misunderstanding C++ arcana.

Here's the sample code...
namespace X {
  int i;

void f() {
  for (int i=0; i<10; ++i)
  using namespace X;

Workaround is to replace "using namespace X" with "using X::i"

             reply	other threads:[~2003-05-19  7:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-19  7:46 derrick [this message]
2003-05-19  8:32 Gabriel Dos Reis
2003-05-19 14:12 bangerth

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