compiler problem

[DR]

void a()
{
for (int i = 0; i <100; i++)
{
....
}
....
for (i = 0; i <100; i++) <-- ERROR
{
....
}
}

The VC++ 2005 compilers says "i undeclared identifer". Why?

[sashan]

i is out of scope after the end of the first for loop. There was a time
when some compilers would allow i to be in scope after the 1st for loop
had ended but the C++ standard (see section 6.5.3) does not allow this
behaviour any more. You can tell the compiler using /Ze that you want i
to be in scope after the end of the loop. Personally I would change my
code so that it was standard compliant.

--
sashan
http://sashang.orcon.net.nz/index.htm

[Jonathan Caves]

"sashan" <sa*****@gmail.com> wrote in message
news:11*********************@g43g2000cwa.googlegro ups.com...

i is out of scope after the end of the first for loop. There was a time
when some compilers would allow i to be in scope after the 1st for loop
had ended but the C++ standard (see section 6.5.3) does not allow this
behaviour any more. You can tell the compiler using /Ze that you want i
to be in scope after the end of the loop. Personally I would change my
code so that it was standard compliant.

--
sashan
http://sashang.orcon.net.nz/index.htm

In Visual C++ 2005 the option to revert back to the old non-conformant
behavior is:

/Zc:forScope-
--
Jonathan Caves
Visual C++ Compiler Team

[DR]

>

In Visual C++ 2005 the option to revert back to the old non-conformant
behavior is:

/Zc:forScope-
--

I figured that out.

I'll report a bug:
The /W0 option seams to be ignored by the VC++2005Exp compiler . I still get
warnings.