Missing return statement from func declared as returning int. about h3

[sgbeal]

Same here:

https://github.com/uber/h3/blob/master/examples/edge.c#L39

[sgbeal]

And here:

https://github.com/uber/h3/blob/master/examples/index.c#L50

[isaacbrodsky]

Hi, I just checked using GCC 6 and do not see any errors or warnings. Looking this up online, it looks like the C99 standard permits not explicitly returning from int main. See for example: https://stackoverflow.com/questions/3727051/why-does-a-main-function-without-a-return-statement-return-value-12/3728153#3728153 Do you have an example compiler/version that's able to compile the example but warns or doesn't emit the return 0?

I don't think there'd be an objection to adding an explicit return statement if you'd like to open a PR.

[sgbeal]

i didn't attempt compilation - just eyeballed the code (and it failed that compilation check ;)). Adding an explicit return for a function declared as returning a value is simply The Right Thing To Do, main() or not.