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why do we use here pass by reference help me i need an explanation in a simple way that i can understand it
//Read 0 int read(string nmt), string 1nt), string f1t], string sttl,int idt1, int ftl, ifstrean& in, string fileName) in.ope
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Answer #1

Call by reference simply to say it is used for record the each and every action happens with that variable.

Arrays are always passed based on call by reference and normal variables or objects are passed by using &(Ampersand) or *(pointer).

For example, here ifstream &in is used with call by reference... In this function, we performed some operations which is opening file and read the contents of entire file, which will be recorded to that variable. In main function, we directly use "in" variable without opening any variable...

Let me know if you have any clarifications. Thank you...

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