SYNOPSIS
       #define _GNU_SOURCE
       #include <complex.h>

       double complex clog10(double complex z);
       float complex clog10f(float complex z);
       long double complex clog10l(long double complex z);

       Link with -lm.

DESCRIPTION
       the  call  clog10(z) is equivalent to clog(z)/log(10).  the other func-
       tions perform the same task for float and long double.

       Note that z close to zero will cause an overflow.

VERSIONS
       These functions first appeared in glibc in version 2.1.

CONFORMING TO
       This function is a GNU extension.  It is reserved  for  future  use  in
       C99.

SEE ALSO
       cabs(3), cexp(3), clog(3), clog2(3), complex(7), feature_test_macros(7)

COLOPHON
       This  page  is  part of release 3.23 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.