Issue with value when exit loop

[steve_tiger_03]

I have this code which give me headache (with VS2017):

int nIndex = 0;
for( int i = 0, nIndex = 0; i < 20; i++ )
{
nIndex++;
}
TRACE( "%d\n", nIndex );

Why the nIndex value is 0 when it exit the loop?

Thanks,

Steve

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