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71 lines
2.5 KiB
Plaintext
71 lines
2.5 KiB
Plaintext
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "FEGETEXCEPTFLAG" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" fegetexceptflag
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.SH NAME
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fegetexceptflag, fesetexceptflag \- get and set floating-point status
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flags
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.SH SYNOPSIS
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.LP
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\fB#include <fenv.h>
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.br
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.sp
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int fegetexceptflag(fexcept_t *\fP\fIflagp\fP\fB, int\fP \fIexcepts\fP\fB);
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.br
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int fesetexceptflag(const fexcept_t *\fP\fIflagp\fP\fB, int\fP \fIexcepts\fP\fB);
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.br
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\fP
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.SH DESCRIPTION
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.LP
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The \fIfegetexceptflag\fP() function shall attempt to store an implementation-defined
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representation of the states of the
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floating-point status flags indicated by the argument \fIexcepts\fP
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in the object pointed to by the argument \fIflagp\fP.
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.LP
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The \fIfesetexceptflag\fP() function shall attempt to set the floating-point
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status flags indicated by the argument
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\fIexcepts\fP to the states stored in the object pointed to by \fIflagp\fP.
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The value pointed to by \fIflagp\fP shall have been
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set by a previous call to \fIfegetexceptflag\fP() whose second argument
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represented at least those floating-point exceptions
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represented by the argument \fIexcepts\fP. This function does not
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raise floating-point exceptions, but only sets the state of the
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flags.
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.SH RETURN VALUE
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.LP
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If the representation was successfully stored, \fIfegetexceptflag\fP()
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shall return zero. Otherwise, it shall return a non-zero
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value. If the \fIexcepts\fP argument is zero or if all the specified
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exceptions were successfully set, \fIfesetexceptflag\fP()
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shall return zero. Otherwise, it shall return a non-zero value.
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.SH ERRORS
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.LP
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No errors are defined.
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fIfeclearexcept\fP() , \fIferaiseexcept\fP() , \fIfetestexcept\fP()
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, the Base Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<fenv.h>\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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