fegetenv(3p) - phpMan

FEGETENV(P)                                                        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 environ-
       ment 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 excep-
       tions, 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. Other-
       wise, it shall return a non-zero value.  If the environment was successfully estab-
       lished,  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 .



POSIX                                2003                          FEGETENV(P)

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