GCC C compile error, void value not ignored as it ought to be

Question

I\'m having trouble compiling some C code. When I compile, I\'l get this error:

player.c: In function ‘login’:  
player.c:54:17: error: void value not igno         


        

Answer 1

You must declare void functions before use them. Try to put them before the main function or before their calls. There's one more action you can do: You can tell the compiler that you will use void functions.

For exemplo, there are two ways to make the same thing:

#include 

void showMsg(msg){
    printf("%s", msg);
}

int main(){
    showMsg("Learn c is easy!!!");
    return 0;
}

...and the other way:

#include 

void showMsg(msg); //Here, you told the compiller that you will use the void function showMsg.

int main(){
    showMsg("Learn c is easy!!!");
    return 0;
}

void showMsg(msg){
    printf("%s", msg);
}