what is the difference between int &val2 = val and int val3 = val?

Asked Jan 03 '16 at 06:04

Active Jan 03 '16 at 06:04

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I'm new to C++ and is trying to learn the concept of reference. Could someone please tell me what is the difference between int &val2 = val and int val3 = val?

I understand that I am creating a reference to val with &val2 (val2 is not an object, but merely a reference to an object). Is it the same with val3? Or am I creating something completely different?

int val = 1034;

int &val2 = val;
int val3 = val;

asked Jan 03 '16 at 06:04

Thor

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By changing the value of `val2`, the value of `val` will be changed and vice versa. But `val3` is an independent variable that just initialized by `val`'s value. – masoud Jan 03 '16 at 06:08
so val3 is an different object compared to val? – Thor Jan 03 '16 at 06:09
Yes. It's completely different. – masoud Jan 03 '16 at 06:10
@deepmax thanks for the help! really appreciate it! – Thor Jan 03 '16 at 06:11

what is the difference between int &val2 = val and int val3 = val?

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