fesetenv man page on HP-UX

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fesetenv(3M)							  fesetenv(3M)

       fesetenv() - set floating-point environment

   HP Integrity Server Only
   PA-RISC Only
       The  function establishes the floating-point environment represented by
       the object pointed to by envp.  The argument  envp  must	 point	to  an
       object set by a call to or or equal the macro

       Note  that  merely  installs  the state of the floating-point exception
       flags represented through its argument, and does not raise these float‐
       ing-point exceptions (hence no traps will be taken).

       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 the environment was
       successfully established.

   PA-RISC Only

       No errors are defined.

       Store the current floating-point environment, continue  on  exceptions,
       and  then  restore the previous environment without raising the accumu‐
       lated floating-point exceptions.

       Restore the default environment:

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

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


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