Variable declaration in the loop or out of the loop

A;
For (... )
{
A =   New A ();
...
}

 

Once thought that if the variable declaration is written outside the loop, you do not have to declare the variable again during each loop, which can save execution time and memory.

As a result, I read the Il from reflector today.CodeIt is found that no essential difference exists between the final il code generated no matter whether the declaration is written outside or inside.

Only the initialization position of the integer variable used by the for loop for counting changes.