From: Eric Wong <normalperson@...>
Date: 2018-01-31T01:17:56+00:00
Subject: [ruby-core:85269] Re: [Ruby trunk Bug#14425] rb_funcall too strict on extra args

mame@ruby-lang.org wrote:
> normalperson (Eric Wong) wrote:
> > Attached are over 500 gem-codesearch results of latest gems.
> 
> nitpick: Your query includes `rb_funcall2`, `rb_funcall3`, and `rb_funcallv` which are safe to pass "`0, 0`".

Oops :x


Btw, I guess this is undefined behavior?
In a standalone case, gcc prints "0", clang prints a randomly high
number.  I expected compilation to fail with both compilers.

```
/* $CC -O2 -Wextra -Wall -o divzero /path/to/this/file.c */
#include <stdio.h>
int main(void)
{
	int a = 0;
	int b = 1;
	int c = a / (a == b);

	printf("%d\n", c);
	return 0;
}
```

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