Re: [ast-developers] log10 support enhancement request

Tue, 16 Dec 2008 20:24:36 -0800 

log10() added to ksh93/data/math.tab for the next release

On Tue, 16 Dec 2008 23:03:48 -0500 Finnbarr Murphy wrote:
> ksh93 currently supports log()=2C log1p()=2C log2()=2C and logb() if the=20
> underlying libm implements these functions.

> The only log* function not currently supported in ksh93 is log10().

> Can you add log10()?  It should only be a matter of adding this=20
> function to the list in ../ksh93/data/math.tab.

> A nitpick - I would also suggest changing this section of=20
> the ksh93 man page:
>  =20
>  Any of the following math library functions  that  are  in
>  the  C  math  library  can  be  used  within an arithmetic
>  expression:

> to something like

>  Any of the following math library functions  that  are  in

>  the  C  math  library  can  be  used  within an arithmetic

>  expression if implemented in the libm math library.=20

> or words to that effect.  I recently came across a couple of
> platforms where libm did not include log2() and hence the=20
> ksh93 I built did not include log2() support.

> Thanks
> - Finnbarr

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> Glen=2C David=2C<br><br>ksh93 currently supports log()=2C log1p()=2C log2()=
> =2C and logb() if the <br>underlying libm implements these functions.<br><b=
> r>The only log* function not currently supported in ksh93 is log10().<br><b=
> r>Can you add log10()?&nbsp=3B It should only be a matter of adding this <b=
> r>function to the list in ../ksh93/data/math.tab.<br><br>A nitpick - I woul=
> d also suggest changing this section of <br>the ksh93 man page:<br>&nbsp=3B=
>  <br>&nbsp=3BAny of the following math library functions&nbsp=3B that&nbsp=
> =3B are&nbsp=3B in<br>&nbsp=3Bthe&nbsp=3B C&nbsp=3B math&nbsp=3B library&nb=
> sp=3B can&nbsp=3B be&nbsp=3B used&nbsp=3B within an arithmetic<br>&nbsp=3Be=
> xpression:<br><br>to something like<br><br>&nbsp=3BAny of the following mat=
> h library functions&nbsp=3B that&nbsp=3B are&nbsp=3B in<br>
> &nbsp=3Bthe&nbsp=3B C&nbsp=3B math&nbsp=3B library&nbsp=3B can&nbsp=3B be&n=
> bsp=3B used&nbsp=3B within an arithmetic<br>
> &nbsp=3Bexpression if implemented in the libm math library. <br>
> <br>or words to that effect.&nbsp=3B I recently came across a couple of<br>=
> platforms where libm did not include log2() and hence the <br>ksh93 I built=
>  did not include log2() support.<br><br>Thanks<br>- Finnbarr<br><br></body>
> </html>=

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