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Initial commit of OpenSPARC T2 architecture model.
[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / html / python / api / boolObjects.html
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55<H2><A NAME="SECTION009220000000000000000"></A><A NAME="boolObjects"></A>
56<BR>
577.2.2 Boolean Objects
58</H2>
59
60<P>
61Booleans in Python are implemented as a subclass of integers. There
62are only two booleans, <tt class="constant">Py_False</tt> and <tt class="constant">Py_True</tt>. As
63such, the normal creation and deletion functions don't apply to
64booleans. The following macros are available, however.
65
66<P>
67<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-384' xml:id='l2h-384' class="cfunction">PyBool_Check</tt></b>(</nobr></td><td>PyObject *<var>o</var>)</td></tr></table></dt>
68<dd>
69 Return true if <var>o</var> is of type <tt class="cdata">PyBool_Type</tt>.
70
71<span class="versionnote">New in version 2.3.</span>
72
73</dd></dl>
74
75<P>
76<dl><dt>PyObject* <b><tt id='l2h-385' xml:id='l2h-385' class="cdata">Py_False</tt></b></dt>
77<dd>
78 The Python <code>False</code> object. This object has no methods. It needs to
79 be treated just like any other object with respect to reference counts.
80</dd></dl>
81
82<P>
83<dl><dt>PyObject* <b><tt id='l2h-386' xml:id='l2h-386' class="cdata">Py_True</tt></b></dt>
84<dd>
85 The Python <code>True</code> object. This object has no methods. It needs to
86 be treated just like any other object with respect to reference counts.
87</dd></dl>
88
89<P>
90<dl><dt><b><tt id='l2h-387' xml:id='l2h-387' class="macro">Py_RETURN_FALSE</tt></b></dt>
91<dd>
92 Return <tt class="constant">Py_False</tt> from a function, properly incrementing its
93 reference count.
94
95<span class="versionnote">New in version 2.4.</span>
96
97</dl>
98
99<P>
100<dl><dt><b><tt id='l2h-388' xml:id='l2h-388' class="macro">Py_RETURN_TRUE</tt></b></dt>
101<dd>
102 Return <tt class="constant">Py_True</tt> from a function, properly incrementing its
103 reference count.
104
105<span class="versionnote">New in version 2.4.</span>
106
107</dl>
108
109<P>
110<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>PyObject*&nbsp;<b><tt id='l2h-389' xml:id='l2h-389' class="cfunction">PyBool_FromLong</tt></b>(</nobr></td><td>long <var>v</var>)</td></tr></table></dt>
111<dd>
112 Return a new reference to <tt class="constant">Py_True</tt> or <tt class="constant">Py_False</tt>
113 depending on the truth value of <var>v</var>.
114
115<span class="versionnote">New in version 2.3.</span>
116
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155<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
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Full OpenSPARC architecture tarball including simulator, hypervisor, and OBP.