sending input parameters to another function

Question

I need to send the list of the input arguments to readInput function. But the compiler gives error when I call readInput function. Could you please tell me where my mistake is?

bool readInput(netcorr net,int argc, char * argv[]);

int main(int argc, char * const argv[]) {
    netcorr net;
    bool error=readInput(net, argc, argv);
}

bool readInput(netcorr &net,int argc, char * argv[])
{
}

thanks for your help. Pegah

Edit: The compiler says

Fehler: Argument 3 von »bool readInput(netcorr, int, char**)« wird initialisiert

Fehler: ungültige Umwandlung von »char* const*« in »char**«

Translation by aschepler:

Error: Argument 3 of 'bool readInput(netcorr, int, char**)' is initialized

Error: invalid conversion from 'char* const*' to 'char**'

You missed the const before argv in readInput definition — digEmAll
– digEmAll, Commented Mar 19, 2011 at 16:03
When I was in uni, I would debug C++ by throwing in *, &, and const in different places until it worked. Now I'm a Java guy. :-O — corsiKa
– corsiKa, Commented Mar 19, 2011 at 16:05
The compiler already told you what the mistake is... you should at least paste the compile error text in your question. — tenfour
– tenfour, Commented Mar 19, 2011 at 16:06
@glowcoder this is easy to understand 1. In variable declaration * means pointer and & means reference 2. In variable using * means dereferencing & menas address of variable — Mihran Hovsepyan
– Mihran Hovsepyan, Commented Mar 19, 2011 at 16:08
FYI: it is also usually a good idea to add the compiler error messages. — Ralf
– Ralf, Commented Mar 19, 2011 at 16:10

Loki Astari · Accepted Answer · 2011-03-19 16:35:58Z

3

Because you try to redirect char * const[] to char*[]. Change your main function to get cahr *[] or change readInput function to get char *const[].

edited Mar 19, 2011 at 16:35

Loki Astari

267k87 gold badges344 silver badges575 bronze badges

answered Mar 19, 2011 at 16:03

Mihran Hovsepyan

11.2k15 gold badges70 silver badges113 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Pegah Over a year ago

@ Mihran Hovsepyan that does not work. the error is: undefined reference to `readInput(netcorr, int, char**)

Mihran Hovsepyan Over a year ago

@Martin in question there was no point to give answer that accepts all ISO standarts, I just give solution of his problem. Also I don't think in nowdays you can find any compiler that doesn't accept char *const[] as type of argv of main function.

Puppy · Accepted Answer · 2011-03-19 16:08:20Z

1

You declared a function taking netcorr as it's first argument, and then defined one taking netcorr& as it's first argument. In addition, you tried to pass a char* const[] as a char*[].

answered Mar 19, 2011 at 16:08

Puppy

148k40 gold badges271 silver badges483 bronze badges

Collectives™ on Stack Overflow

sending input parameters to another function

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related