Weird initialization in C

Posted by pacopepe on Stack Overflow See other posts from Stack Overflow or by pacopepe
Published on 2010-05-23T18:50:49Z Indexed on 2010/05/23 19:01 UTC
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Hi there,

I have this piece of code and i don't know how it works

#include <stdio.h>

int main(void)
{
    int numero = ({const int i = 10; i+10;});

    printf("%d\n", numero); // Prints 20

    return 0;
}

Why if i delete the second part (i+10;), the compiler gets an error? Why are the brackets necessary?

Thank you ^^!

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