diff options
Diffstat (limited to 'man-pages-posix-2003/man3p/feraiseexcept.3p')
| -rw-r--r-- | man-pages-posix-2003/man3p/feraiseexcept.3p | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/man-pages-posix-2003/man3p/feraiseexcept.3p b/man-pages-posix-2003/man3p/feraiseexcept.3p new file mode 100644 index 0000000..20da1e5 --- /dev/null +++ b/man-pages-posix-2003/man3p/feraiseexcept.3p @@ -0,0 +1,71 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "FERAISEEXCEPT" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" feraiseexcept +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. +.SH NAME +feraiseexcept \- raise floating-point exception +.SH SYNOPSIS +.LP +\fB#include <fenv.h> +.br +.sp +int feraiseexcept(int\fP \fIexcepts\fP\fB); +.br +\fP +.SH DESCRIPTION +.LP +The \fIferaiseexcept\fP() function shall attempt to raise the supported +floating-point exceptions represented by the argument +\fIexcepts\fP. The order in which these floating-point exceptions +are raised is unspecified. Whether the \fIferaiseexcept\fP() +function additionally raises the inexact floating-point exception +whenever it raises the overflow or underflow floating-point +exception is implementation-defined. +.SH RETURN VALUE +.LP +If the argument is zero or if all the specified exceptions were successfully +raised, \fIferaiseexcept\fP() shall return zero. +Otherwise, it shall return a non-zero value. +.SH ERRORS +.LP +No errors are defined. +.LP +\fIThe following sections are informative.\fP +.SH EXAMPLES +.LP +None. +.SH APPLICATION USAGE +.LP +The effect is intended to be similar to that of floating-point exceptions +raised by arithmetic operations. Hence, enabled traps +for floating-point exceptions raised by this function are taken. +.SH RATIONALE +.LP +Raising overflow or underflow is allowed to also raise inexact because +on some architectures the only practical way to raise an +exception is to execute an instruction that has the exception as a +side effect. The function is not restricted to accept only valid +coincident expressions for atomic operations, so the function can +be used to raise exceptions accrued over several operations. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +\fIfeclearexcept\fP(), \fIfegetexceptflag\fP(), \fIfesetexceptflag\fP(), +\fIfetestexcept\fP(), the Base Definitions +volume of IEEE\ Std\ 1003.1-2001, \fI<fenv.h>\fP +.SH 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 . |