A C/C++ Function Call Puzzle
Last Updated :
10 Jun, 2022
Consider the following program. Predict the output of it when compiled with C and C++ compilers.
C
#include<stdio.h>
void func()
{
}
int main()
{
func();
func(2);
}
|
C++
#include <iostream>
using namespace std;
void func()
{
}
int main() {
func();
func(2);
return 0;
}
|
The above program compiles fine in C, but doesn’t compile in C++.
In C++, func() is equivalent to func(void)
In C, func() is equivalent to func(…)
Refer this for details and this for more programs that compile in C, but not in C++.
This article is compiled by Rahul Mittalal.
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