What is the result of compiling and running this code?
main()
{
char string[] = "Hello World";
display(string);
}
void display(char *string)
{
printf("%s", string);
}
main()
{
char string[] = "Hello World";
display(string);
}
void display(char *string)
{
printf("%s", string);
}A. will print Hello World
B. Compilation Error
C. will print garbage value
D. None of these.
Answer: Option B
Solution(By Examveda Team)
Compiler Error : Type mismatch in redeclaration of function display
As the function display() is not defined before use, compiler will assume the return type of the function which is int(default return type). But when compiler will see the actual definition of display(), mismatch occurs since the function display() is declared as void. Hence the error.
In C, what is a function primarily used for?
A. Decision making
B. Variable declaration
C. Code organization and reusability
D. Printing output
What is the purpose of a function prototype in C?
A. To declare a function's return type
B. To declare a function's name
C. To declare a function's parameters and return type
D. To declare a function's name and parameters
In C, how are function arguments passed by default?
A. By value
B. By reference
C. By pointer
D. By address
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