fesetround man page on HP-UX

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fesetround(3M)							fesetround(3M)

       fesetround() - set floating-point rounding direction mode

       The  function  establishes  the	rounding  direction represented by its
       argument round.	The round argument must equal one of the  macros:  and
       If the argument does not match a rounding direction macro, the rounding
       direction is not changed.

       The default rounding direction mode is round to nearest

       To use this function, compile either with the default  option  or  with
       the and options.	 Make sure your program includes

       For HP Integrity servers, specify on the compiler command line or place
       the call to this function under the effect of an affirmative pragma:

       If the pragma is placed outside of  any	top-level  declarations	 in  a
       file, the pragma will apply to all declarations in the compilation fol‐
       lowing the pragma until another pragma is encountered or until the  end
       of the file is reached.

       If  the	pragma	is placed at the beginning of a block (compound state‐
       ment), the pragma will apply until another  pragma  is  encountered  or
       until the end of the block is reached.

       For PA-RISC, you might need to use the compiler option in order to pre‐
       vent optimizations that can undermine the specified  behavior  of  this

       Link  in	 the math library by specifying on the compiler or linker com‐
       mand line.

       For more information, see the at the following site:

       The function returns a zero value if and only if the argument is	 equal
       to a rounding direction macro.

       No errors are defined.

       Save, set, and restore the rounding direction.

       fegetround(3M), fenv(5).

       :  ISO/IEC  C99	(including  Annex  F, "IEC 60559 floating-point arith‐


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