MSVC++ 6 question

**Panopticon** · 02-03-2003

Im sure the current standard C++ states that variables declared in the initialization part of a for(;

loop are local only to that loop.
But when applied to (my) MSVC++ 6, this is not the case, and the variable is within the same scope as the for(;

loop.

i.e:

Code:

for(int x=0;x<10;x++) cout<<x;
cout<<++x; //x is still known up to this point

Can anyone explain this? or is this because MSVC does not conform to the standard perhaps?

**Polymorphic OOP** · 02-03-2003

Yeah, that's one of the many problems with MSVC++ 6.0. It should be local to the loop.

**Panopticon** · 02-03-2003

one of the many problems

For such a widely used compiler, Im surprised it has *many* more problems. lol thanks.

**Polymorphic OOP** · 02-03-2003

Yeah, it's got more problems than you can imagine. Almost once a week I run into another problem with it. This morning I got fed up and started using a free compiler instead. Problem's gone! I hear that Visual C++ 7.0 has a lot of stuff fixed, but I'm not about to blow a lot of money to find out.

**laasunde** · 02-03-2003

Originally posted by Polymorphic OOP
I hear that Visual C++ 7.0 has a lot of stuff fixed, but I'm not about to blow a lot of money to find out.

Any idea when msvc 7.0 will be released ?

**Polymorphic OOP** · 02-03-2003

It IS released. Has been for a while now. It's a part of Visual Studio .NET

**laasunde** · 02-03-2003

Originally posted by Polymorphic OOP
It IS released. Has been for a while now. It's a part of Visual Studio .NET

Just goes to show how upto date Im with new software.

Thanks for the info btw.

**Eibro** · 02-03-2003

Code:

#define SCOPE_FIX int
#ifdef _MSC_VER
  #if (_MSC_VER == 1200)
    #undef SCOPE_FIX
    #define SCOPE_FIX
  #endif
#endif

If you're using VC++ 6, and you're aiming for portability... include the above code and use SCOPE_FIX as your variable type whenever your variables would normally need to be redeclared.. like:

Code:

for (int i = 0; i < 100; i++)
   // ...

for (SCOPE_FIX i = 0; i < 100; i++)
   // ...

Most of the problems in VC++ 6 are due to its age... i'm pretty sure the compiler was out before the current standard was finalized.

Also, as far as I know, the .NET command line compiler is freely availible from microsoft. I'm sure someone's build a decent IDE ontop of it, too

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