Nested Functions in C

Question

I read that nested function don't exist in C. I then successfully executed the following piece of code using the cc command on my linux machine.

#include <stdio.h>
#include <string.h>

int main(){
    float dummy(){
        printf("hello\n");
    }
    dummy();
    return 0;
}

I got the the output hello.

How does that play out? Does my compiler support nested functions?

score 1 · Answer 1 · answered Jun 05 '19 at 01:58

1

GNU C supports nested functions as an extension. Your cc binary on your Linux machine is almost certainly a symlink to gcc.

answered Jun 05 '19 at 01:58

jamesdlin

score 1 · Answer 2 · answered Jun 05 '19 at 01:59

1

Nested functions don't exist in standard C. However, it might be supported as an extension in certain compilers like GNU.

answered Jun 05 '19 at 01:59

tejasvi88

Dupe of [Nested function in C](https://stackoverflow.com/questions/2608158/nested-function-in-c) – tejasvi88 Jun 05 '19 at 02:01

2 Answers2