Adding upstream version 4.22.0.upstream/4.22.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/upstream/archlinux/man3p/fegetround.3p b/upstream/archlinux/man3p/fegetround.3p
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+'\" et
+.TH FEGETROUND "3P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\"
+.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
+fegetround,
+fesetround
+\(em get and set current rounding direction
+.SH SYNOPSIS
+.LP
+.nf
+#include <fenv.h>
+.P
+int fegetround(void);
+int fesetround(int \fIround\fP);
+.fi
+.SH DESCRIPTION
+The functionality described on this reference page is aligned with the
+ISO\ C standard. Any conflict between the requirements described here and the
+ISO\ C standard is unintentional. This volume of POSIX.1\(hy2017 defers to the ISO\ C standard.
+.P
+The
+\fIfegetround\fR()
+function shall get the current rounding direction.
+.P
+The
+\fIfesetround\fR()
+function shall establish the rounding direction represented by its
+argument
+.IR round .
+If the argument is not equal to the value of a rounding direction
+macro, the rounding direction is not changed.
+.SH "RETURN VALUE"
+The
+\fIfegetround\fR()
+function shall return the value of the rounding direction macro
+representing the current rounding direction or a negative value if
+there is no such rounding direction macro or the current rounding
+direction is not determinable.
+.P
+The
+\fIfesetround\fR()
+function shall return a zero value if and only if the requested
+rounding direction was established.
+.SH ERRORS
+No errors are defined.
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+The following example saves, sets, and restores the rounding direction,
+reporting an error and aborting if setting the rounding direction
+fails:
+.sp
+.RS 4
+.nf
+
+#include <fenv.h>
+#include <assert.h>
+void f(int round_dir)
+{
+    #pragma STDC FENV_ACCESS ON
+    int save_round;
+    int setround_ok;
+    save_round = fegetround();
+    setround_ok = fesetround(round_dir);
+    assert(setround_ok == 0);
+    /* ... */
+    fesetround(save_round);
+    /* ... */
+}
+.fi
+.P
+.RE
+.SH "APPLICATION USAGE"
+None.
+.SH RATIONALE
+None.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+The Base Definitions volume of POSIX.1\(hy2017,
+.IR "\fB<fenv.h>\fP"
+.\"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1-2017, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, 2018 Edition,
+Copyright (C) 2018 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 .
+.PP
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .