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Linux 2.6 - man page for fegetenv (linux section 3posix)

FEGETENV(P)			    POSIX Programmer's Manual			      FEGETENV(P)

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  repre-
       sented 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, fes-
       etenv() 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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003				      FEGETENV(P)


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