feupdateenv man page on HP-UX

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feupdateenv(3M)						       feupdateenv(3M)

       feupdateenv() - update floating-point environment

   HP Integrity Server Only
   PA-RISC Only
       The  function  saves  the currently raised floating-point exceptions in
       its automatic storage, installs the floating-point  environment	repre‐
       sented  by  the	object	pointed	 to by envp, and then raises the saved
       floating-point exceptions.  Use with to	hide  spurious	floating-point

       The  argument envp must point to an object set by a call to or or equal
       the macro

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

       For  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:

   Integrity Server Only
       This function always returns 0, indicating that all  the	 actions  were
       successfully carried out.

   PA-RISC Only

       No errors are defined.

       Store the current floating-point environment in hide spurious underflow
       exceptions, and continue on any floating-point  exceptions  that	 occur
       until the call to is encountered.

       fegetenv(3M), feholdexcept(3M), fesetenv(3M), fenv(5).

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


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