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 .