clog2 man page

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


#include <complex.h>

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


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.


Not yet in glibc, as at version 2.19.

See Also

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

Referenced By

clog(3), clog10(3), complex(7), log2(3).

Explore man page connections for clog2(3).

clog2f(3) and clog2l(3) are aliases of clog2(3).