Re: [eigen] matrix exponential with c++0x

[Hauke Heibel <hauke.heibel@xxxxxxxxxxxxxx>]

On Mon, Nov 30, 2009 at 2:37 PM, mmoll <Markus.Moll@xxxxxxxxxxxxxxxx> wrote:

Hi

Quoting Hauke Heibel <hauke.heibel@xxxxxxxxxxxxxx>:

> First, M_LOG2_E suddenly was not defined anymore so I added
>
> #if defined(log2) && !defined(M_LOG2_E)
>   #define M_LOG2_E 0.693147180559945309417
> #endif

As far as I know, M_LOG2_E was never standard? (not mentioned in C++98
or C99)

Can you cite the exact draft and versions you have been looking at? I cannot even find M_PI.

I was just looking since I found M_PIl (the last letter is an L for long) in one of our tests and as with M_LOG2_E it is not defined over here...

Regards,
Hauke