NAME

       fegetenv, fesetenv - get and set current floating-point environment

SYNOPSIS

       #include <fenv.h>

       int fegetenv(fenv_t *envp);
       int fesetenv(const fenv_t *envp);

DESCRIPTION

       The  fegetenv()  function shall attempt to store the current floating-point environment in
       the object pointed to by envp.

       The  fesetenv()  function  shall  attempt  to  establish  the  floating-point  environment
       represented  by  the object pointed to by envp. The argument envp shall point to an object
       set by a call to fegetenv() or  feholdexcept(),  or  equal  a  floating-point  environment
       macro. The fesetenv() function does not raise floating-point exceptions, but only installs
       the state of the floating-point status flags represented through its argument.

RETURN VALUE

       If the representation was successfully stored, fegetenv() shall return zero. Otherwise, it
       shall  return  a  non-zero  value.   If  the  environment  was  successfully  established,
       fesetenv() shall return zero. Otherwise, it shall return a non-zero value.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       feholdexcept() , feupdateenv() , the  Base  Definitions  volume  of  IEEE Std 1003.1-2001,
       <fenv.h>

COPYRIGHT

       Portions  of  this  text  are  reprinted  and  reproduced in electronic form from IEEE Std
       1003.1, 2003 Edition, Standard for Information Technology  --  Portable  Operating  System
       Interface  (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
       the Institute of Electrical and Electronics Engineers, Inc and  The  Open  Group.  In  the
       event  of  any  discrepancy  between this version and the original IEEE and The Open Group
       Standard, the original IEEE and The Open Group  Standard  is  the  referee  document.  The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .