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why the object pass to the friend function in declaration is different from invocation? (declaration with & and calling without & operator)

23rd Jun 2016, 10:37 PM
Hosein Aghajani
Hosein Aghajani - avatar
3 Respostas
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To change any variable in a class if wanted then we should use & operator
9th Jul 2016, 1:23 PM
Desik
Desik - avatar
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when & is used any change in function variable will also result in change in the actual variable. When & is not used the actual variable only passes value and does not undergo any change.
8th Jul 2016, 5:29 PM
Athreyan MKS
Athreyan MKS - avatar
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when & is used. Funtion will point to address on memory and make change valiable when funtion change
15th Jul 2016, 8:26 AM
Loc