Re: Old for scope rules (/forScope-) don't work with STL declarations?

Tim Roberts <>
Wed, 29 Nov 2006 23:31:11 -0800
"Nimai" <> wrote:

In trying to get hundreds of legacy C++ projects compiling under VS
2005 from 2003, I turned off the proper for-loop scoping rules using

It works fine with for loops declaring ints, but I got an undeclared
identifier error when referencing a for-declared STL iterator. I tried
std::string too, out of curiosity, and it doesn't behave properly
Here's a meaningless example meant to demonstrate the problem only:

for( int xx=0; xx<10; ++xx)
result = (xx==10); // WORKS FINE
for( std::string yy; !yy.empty(); yy.clear())
yy.clear(); //IN VS2005: error C2065: 'yy' : undeclared identifier'

Any idea what might be going on here? Why would STL classes be any
different than built-in types? (I tried declaring my own struct in the
for loop, and it worked as int did.)

Interesting. This same example fails for me in the same way in Visual
Studio 2003. Are you saying it WORKS for you in VS2003?
Tim Roberts,
Providenza & Boekelheide, Inc.

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