What if we don't use & after int or auto? Can we write the loop like
for(int i:a)// here a is an array
{
...
}
What would be the difference if we use & and if we won't.
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fabian
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Rajesh Chaudhary
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We would make an extra copy. – Hatted Rooster Jul 12 '21 at 16:42
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If the loop modifies `i` it will only modify the local extra copy, and not modify the element in `a`. – Eljay Jul 12 '21 at 16:46