What is the difference between i and i

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In C, what is the difference between using ++i and i++, and which should be used in the incrementation block of a for loop?
Feb 17, 2022 in Others by Rahul
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1 answer to this question.

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To answer your question, the ++i will increment the value of i, and then return the incremented value.
i = 1; j = ++i; (i is 2, j is 2) whereas, the i++ will increment the value of i, but return the original value that i held before being incremented.
i = 1; j = i++; (i is 2, j is 1)

For a for loop, either works. ++i seems more common. However, in any case, follow the guideline "prefer ++i over i++" and you won't go wrong.

You can verify this by looking at the generated code, which will be identical.

answered Feb 17, 2022 by Aditya
• 7,660 points

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