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Can main function call itself in C++?
The main() function can call itself in C++. This is an example of recursion as that means a function calling itself. A program that demonstrates this is given as follows.
Example
#include<iostream> using namespace std; int main() { static int x = 1; cout << x << " "; x++; if(x == 11) { return 0; } main(); }
Output
The output of the above program is as follows.
1 2 3 4 5 6 7 8 9 10
Now, let us understand the above program.
The variable x is a static variable in main(). Its value is displayed and then it is incremented. Then the if statement is used to provide a means to end the program as otherwise it would call itself infinitely. The program ends when the value of x is 11. Finally, the function main() calls itself using the function call main(). The code snippet for this is given as follows.
int main() { static int x = 1; cout << x << " "; x++; if(x == 11) { return 0; } main(); }
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