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Date: Thu, 14 Apr 2016 19:00:25 +0900
From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin@cygwin.com
Subject: Re: multiple definition of `atan2l' on the current Cygwin
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Hi Corinna,

On Thu, 14 Apr 2016 09:52:05 +0200
Corinna Vinschen wrote:
> If it's that simple, why does my STC (or a simple variation thereof) not
> complain?

It is because optimizer removes the function call.

Try:

$ cat > m.cc <<EOF
#include <cstdio>
#include <cmath>

int main()
{
  long double x, y;
  scanf("%Lf %Lf", &x, &y);
  printf("%Lf\n", atan2l(x,y));
  return 0;
}
EOF
$ g++ m.cc -lm

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>

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