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CLOG10

Section: Linux Programmer's Manual (3)
Updated: 2017-09-15
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NAME

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

SYNOPSIS

#define _GNU_SOURCE /* See feature_test_macros(7) */
#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)

or equally:

log10(cabs(c)) + I * carg(c) / log(10)

The other functions 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.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
clog10(), clog10f(), clog10l()	Thread safety	MT-Safe

CONFORMING TO

These functions are GNU extensions. The identifiers are reserved for future use in C99 and C11.

COLOPHON

This page is part of release 4.13 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.