Update of /cvsroot/boost/boost/libs/mpl/doc/src/refmanual
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv6195
Modified Files:
if_.rst if_c.rst
Log Message:
Add an example that shows use of if_ with dependent entities
Index: if_.rst
===================================================================
RCS file: /cvsroot/boost/boost/libs/mpl/doc/src/refmanual/if_.rst,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- if_.rst 29 Nov 2004 06:33:06 -0000 1.1
+++ if_.rst 29 May 2007 06:59:16 -0000 1.2
@@ -76,6 +76,23 @@
BOOST_MPL_ASSERT(( is_same<t2, long> ));
+.. parsed-literal::
+
+ // allocates space for an object of class T on heap or "inplace"
+ // depending on its size
+ template< typename T > struct lightweight
+ {
+ // ...
+ typedef typename if\_<
+ less_equal< sizeof\_<T>, sizeof\_<T*> >
+ , inplace_storage<T>
+ , heap_storage<T>
+ >::type impl_t;
+
+ impl_t impl;
+ };
+
+
See also
--------
Index: if_c.rst
===================================================================
RCS file: /cvsroot/boost/boost/libs/mpl/doc/src/refmanual/if_c.rst,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- if_c.rst 29 Nov 2004 06:33:06 -0000 1.1
+++ if_c.rst 29 May 2007 06:59:16 -0000 1.2
@@ -77,6 +77,23 @@
BOOST_MPL_ASSERT(( is_same<t2, long> ));
+.. parsed-literal::
+
+ // allocates space for an object of class T on heap or "inplace"
+ // depending on its size
+ template< typename T > struct lightweight
+ {
+ // ...
+ typedef typename if_c<
+ sizeof(T) <= sizeof(T*)
+ , inplace_storage<T>
+ , heap_storage<T>
+ >::type impl_t;
+
+ impl_t impl;
+ };
+
+
See also
--------
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