Originální popis anglicky:
feholdexcept - save current floating-point environment
Návod, kniha: POSIX Programmer's Manual
#include <fenv.h>
int feholdexcept(fenv_t *
envp);
The
feholdexcept() function shall save the current floating-point
environment in the object pointed to by
envp, clear the floating-point
status flags, and then install a non-stop (continue on floating-point
exceptions) mode, if available, for all floating-point exceptions.
The
feholdexcept() function shall return zero if and only if non-stop
floating-point exception handling was successfully installed.
No errors are defined.
The following sections are informative.
None.
None.
The
feholdexcept() function should be effective on typical
IEC 60559:1989 standard implementations which have the default non-stop
mode and at least one other mode for trap handling or aborting. If the
implementation provides only the non-stop mode, then installing the non-stop
mode is trivial.
None.
fegetenv() ,
fesetenv() ,
feupdateenv() , 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
.
