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Question


Point out the error in the following program.


#include<stdio.h>
int main()
{
int (*p)() = fun;
(*p)();
return 0;
}
int fun()
{
printf("Placementadda");
return 0;
}
Options:
A .  Error: in int(*p)() = fun;
B .  Error: fun() prototype not defined
C .  No error
D .  None of these
Answer: Option B

The compiler will not know that the function int fun() exists. So we have to define the function prototype of int fun();
To overcome this error, see the below program



#include<stdio.h>
int fun(); /* function prototype */
int main()
{
int (*p)() = fun;
(*p)();
return 0;
}
int fun()
{
printf("placementadda");
return 0;
}



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