trusty (3) fegetexceptflag.3posix.gz

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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  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 IEEE Std 1003.1-2001,
       <fenv.h>


       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 .