cbrtd64.3m (2010 09)

c
cbrtd64(3M) cbrtd64(3M)
(HP Integrity Server Only)
NAME
cbrtd64(), cbrtd128(), cbrtd32() - decimal cube root functions
SYNOPSIS
#define __STDC_WANT_DEC_FP__
#include <math.h>
_Decimal64 cbrtd64(_Decimal64 x);
_Decimal128 cbrtd128(_Decimal128 x);
_Decimal32 cbrtd32(_Decimal32 x);
DESCRIPTION
cbrtd64() returns the cube root of x.
cbrtd128() is a _Decimal128 version of cbrtd64(); it takes a
_Decimal128 argument and
returns a
_Decimal128 result.
cbrtd32() is a _Decimal32 version of cbrtd64(); it takes a
_Decimal32 argument and returns a
_Decimal32 result.
These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward.
USAGE
To use any of these functions, compile with the +decfp option.
Make sure your program defines
__STDC_WANT_DEC_FP__
and then includes <math.h>.
Link in the math library by specifying
-lm or -l:libm.a on the linking command line.
For more information, see the HP-UX floating-point guide for HP Integrity servers at the following site:
http://www.hp.com/go/fp
.
RETURN VALUE
cbrtd64(±0) returns ±0.
If x is ±infinity,
cbrtd64() returns ±infinity respectively.
If x is NaN,
cbrtd64() returns NaN.
cbrtd64() raises the inexact exception whenever a rounded result does not equal the mathematical
result.
ERRORS
No errors are defined.
SEE ALSO
powd64(3M), sqrtd64(3M), math(5).
STANDARDS CONFORMANCE
These functions conform to ISO/IEC TR 24732, "Extension for the programming language C to support
decimal floating-point arithmetic".
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1