FEGETEXCEPTFLAG(3)         POSIX Programmer's Manual        FEGETEXCEPTFLAG(3)



PROLOG
       This manual page is part of the POSIX Programmer's Manual.  The OS
       implementation of this interface may differ (consult the corresponding
       OS manual page for details of OS behavior), or the interface may not be
       implemented on OS.


NAME
       fegetexceptflag, fesetexceptflag -- get and set floating-point status
       flags

SYNOPSIS
       #include <fenv.h>

       int fegetexceptflag(fexcept_t *flagp, int excepts);
       int fesetexceptflag(const fexcept_t *flagp, int excepts);

DESCRIPTION
       The functionality described on this reference page is aligned with the
       ISO C standard. Any conflict between the requirements described here
       and the ISO C standard is unintentional. This volume of POSIX.1-2008
       defers to the ISO C standard.

       The fegetexceptflag() function shall attempt to store an
       implementation-defined representation of the states of the floating-
       point status flags indicated by the argument excepts in the object
       pointed to by the argument flagp.

       The fesetexceptflag() function shall attempt to set the floating-point
       status flags indicated by the argument excepts to the states stored in
       the object pointed to by flagp.  The value pointed to by flagp shall
       have been set by a previous call to fegetexceptflag() whose second
       argument represented at least those floating-point exceptions
       represented by the argument excepts.  This function does not raise
       floating-point exceptions, but only sets the state of the flags.

RETURN VALUE
       If the representation was successfully stored, fegetexceptflag() shall
       return zero. Otherwise, it shall return a non-zero value. If the
       excepts argument is zero or if all the specified exceptions were
       successfully set, fesetexceptflag() 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
       feclearexcept(), feraiseexcept(), fetestexcept()

       The Base Definitions volume of POSIX.1-2008, <fenv.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open Group.  (This is
       POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2013                   FEGETEXCEPTFLAG(3)
