cbrtl (3)
Leading comments
Copyright 1995 Jim Van Zandt <jrv@vanzandt.mv.com> %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since th...
NAME
cbrt, cbrtf, cbrtl  cube root functionSYNOPSIS
#include <math.h> double cbrt(double x);
float cbrtf(float x);
long double cbrtl(long double x);
Link with lm.
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
cbrt():

_BSD_SOURCE  _SVID_SOURCE  _XOPEN_SOURCE >= 500 
_XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED  _ISOC99_SOURCE 
_POSIX_C_SOURCE >= 200112L;
or cc std=c99

_BSD_SOURCE  _SVID_SOURCE  _XOPEN_SOURCE >= 600  _ISOC99_SOURCE 
_POSIX_C_SOURCE >= 200112L;
or cc std=c99
DESCRIPTION
These functions return the (real) cube root of x. This function cannot fail; every representable real value has a representable real cube root.RETURN VALUE
These functions return the cube root of x.If x is +0, 0, positive infinity, negative infinity, or NaN, x is returned.
ERRORS
No errors occur.ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).Interface  Attribute  Value 
cbrt(), cbrtf(), cbrtl()  Thread safety  MTSafe 