FEGETEXCEPTFLAG(P) POSIX Programmer's Manual FEGETEXCEPTFLAG(P)
fegetexceptflag, fesetexceptflag - get and set floating-point status flags
int fegetexceptflag(fexcept_t *flagp, int excepts);
int fesetexceptflag(const fexcept_t *flagp, int excepts);
The fegetexceptflag() function shall attempt to store an implementation-defined represen-
tation 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 indi-
cated 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.
If the representation was successfully stored, fegetexceptflag() shall return zero. Other-
wise, 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. Other-
wise, it shall return a non-zero value.
No errors are defined.
The following sections are informative.
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 orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 FEGETEXCEPTFLAG(P)