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CLOG10(3) Linux Programmer's Manual CLOG10(3)
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.
SEE ALSO
cabs(3), cexp(3), clog(3), clog2(3), complex(7)
2021-03-22 CLOG10(3)