trunc(3m) [hpux man page]

trunc(3M)																 trunc(3M)

NAME

       trunc(), truncf(), truncl(), truncw(), truncq() - truncation functions

SYNOPSIS

   HP Integrity Server Only
DESCRIPTION

       The function rounds its argument to the integral value, in floating-point format, nearest to but no larger in magnitude than the argument.

   Integrity Server Only
       is a version of it takes a argument and returns a result.

       is a version of it takes a argument and returns a result.

       is an version of it takes an argument and returns an result.

       is equivalent to on HP-UX systems.

USAGE

       To use these functions, compile either with the default option or with the and options.

       To use (for Integrity servers) or compile also with the option.

       To use these functions, make sure your program includes Link in the math library by specifying on the compiler or linker command line.

       For more information, see the at the following site:

RETURN VALUE

       If x is returns x.

       If x is NaN, returns NaN.

       may raise the inexact exception if x is non-integral and finite.

ERRORS

       No errors are defined.

SEE ALSO

       ceil(3M),  floor(3M),  fabs(3M),  fmod(3M),  fegetround(3M),  fesetround(3M),  lrint(3M),  llrint(3M),  lround(3M),  llround(3M), rint(3M),
       round(3M), math(5), fenv(5).

STANDARDS CONFORMANCE

       : ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

																	 trunc(3M)

rint(3M)																  rint(3M)

NAME

       rint(),	rintf(), rintl(), rintw(), rintq(), nearbyint(), nearbyintf(), nearbyintl(), nearbyintw(), nearbyintq() - round to nearest integer
       functions

SYNOPSIS

   HP Integrity Server Only
DESCRIPTION

       and return the integer (represented as a floating-point number) nearest x according to the current rounding direction  mode.   These  func-
       tions meet the requirement of the IEEE-754 standard for an operation that rounds to integer in floating-point format.

       The two functions are identical except that raises the inexact exception if the result differs in value from the argument, while does not.

       In  the	default  rounding direction (round to nearest), is the integer nearest x with the additional stipulation that if |-x|=1/2, then is
       even.  (The same statement applies to

       If the current rounding direction is toward negative infinity, and return the same value as If the current  rounding  direction	is  toward
       positive infinity, and return the same value as

   Integrity Server Only
       are versions of and respectively; they take a argument and return a result.

       and are versions of and respectively; they take a argument and return a result.

       and are versions of and respectively; they take an argument and return an result.

       and are equivalent to and respectively on HP-UX systems.

USAGE

       To use these functions, compile either with the default option or with the and options.	To use (for Integrity servers) or compile with the
       option.	Make sure your program includes Link in the math library by specifying on the compiler or linker command line.

       For more information, see the at the following site:

RETURN VALUE

       If x is and return x.

       If x is NaN, the and functions return NaN.

ERRORS

       No errors are defined.

SEE ALSO

       ceil(3M), floor(3M), fabs(3M),  fmod(3M),  fegetround(3M),  fesetround(3M),  lrint(3M),	llrint(3M),  lround(3M),  llround(3M),	round(3M),
       trunc(3M), math(5), fenv(5).

STANDARDS CONFORMANCE

       : XPG4.2, ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

       : ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

																	  rint(3M)