variable scope in statement blocks

Posted by fearofawhackplanet on Stack Overflow See other posts from Stack Overflow or by fearofawhackplanet
Published on 2010-04-22T17:43:55Z Indexed on 2010/04/22 17:53 UTC
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for (int i = 0; i < 10; i++)
{
    Foo();
}
int i = 10; // error, 'i' already exists

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for (int i = 0; i < 10; i++)
{
    Foo();
}
i = 10; // error, 'i' doesn't exist

By my understanding of scope, the first example should be fine. The fact neither of them are allowed seems even more odd. Surely 'i' is either in scope or not.

Is there something non-obvious about scope I don't understand which means the compiler genuinely can't resolve this? Or is just a case of nanny-state compilerism?

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