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.NET Forum / Languages / Managed C++ / July 2004

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a real strange C4288

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maxim khesin - 01 Jul 2004 04:29 GMT
I was working on some code that compiled with vc6, eg.g

for(int i;i<x;);
if(i<j)
{// etc

which I rewrote to

int i = 0;
for(i = n;i<x;);
if(i<j)
{// etc

to make it more compliant, but strangely I got a
warning C4288: nonstandard extension used : 'i' : loop control variable
declared in the for-loop is used outside the for-loop scope; it
conflicts with the declaration in the outer scope

This is boggling my mind, because i is NOT declared in the for-loop. Any
ideas?

thanks,
max
David Lowndes - 01 Jul 2004 09:22 GMT
>I was working on some code that compiled with vc6, eg.g
>
[quoted text clipped - 16 lines]
>This is boggling my mind, because i is NOT declared in the for-loop. Any
>ideas?

Have you got a complete compilable snippet that illustrates the
problem?

Dave
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Balaji J - 01 Jul 2004 10:24 GMT
Just check if 'i' is not re-declared in the for loop. Else add the compiler option /Zc:forScope which will tell that the standard C++ behavior of for loop to be followed in the program.

Balaji

> I was working on some code that compiled with vc6, eg.g
>
[quoted text clipped - 19 lines]
> thanks,
> max

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