Hello Kevin,

> "Michael Kerrisk" <[EMAIL PROTECTED]> writes:
> >
> > Does the clog2() man page have the same problem?
> 
> Yes I think so.
>
> Does that function exist in the library at the moment though?  Trying
> 
>       gcc clog2.c -lm
> 
> on the file below gives
> 
>       /tmp/ccHc7oB9.o: In function `main':
>       clog2.c:(.text+0x31): undefined reference to `clog2'
>       collect2: ld returned 1 exit status

Yes, this function is still vapourware.  See the modified 
man page below, which will appear in 2.41.

Thanks

Michael


CLOG2(3)               complex math routines               CLOG2(3)



NAME
       clog2, clog2f, clog2l - base-2 logarithm of a complex number

SYNOPSIS
       #include <complex.h>

       double complex clog2(double complex z);
       float complex clog2f(float complex z);
       long double complex clog2l(long double complex z);

DESCRIPTION
       The call clog2(z) is equivalent to clog(z)/log(2).

       The other functions perform the same task for float and long
       double.

       Note that z close to zero will cause an overflow.

CONFORMING TO
       These function names are reserved for future use in C99.

AVAILABILITY
       Not yet in glibc, as at version 2.4.

SEE ALSO
       cabs(3), cexp(3), clog(3), clog10(3), complex(7)


-- 
Michael Kerrisk
maintainer of Linux man pages Sections 2, 3, 4, 5, and 7 

Want to help with man page maintenance?  
Grab the latest tarball at
ftp://ftp.win.tue.nl/pub/linux-local/manpages/, 
read the HOWTOHELP file and grep the source 
files for 'FIXME'.


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