clog10, clog10f, clog10l – base-10 logarithm of a complex number

USAGE
       #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 logarithm is defined as log10(cabs(z))+I*carg(z).  Please note that
       z close to zero will cause an overflow.

CONFORMING TO
       The 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)