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* Fix a couple more <>&'s

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* Correct an extremely minor technical point about a deprecated interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3609 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-09-06 22:51:10 +00:00
parent 83b5ee060d
commit 2b76306eb7
1 changed files with 12 additions and 9 deletions
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21
docs/ProgrammersManual.html
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@ -251,22 +251,25 @@ a <tt>BasicBlock</tt>:
<pre>
// blk is a pointer to a BasicBlock instance
for(BasicBlock::iterator i = blk->begin(), e = blk->end(); i != e; ++i) {
// the next statement works since operator<<(ostream&,...)
// is overloaded for Instruction&
for(BasicBlock::iterator i = blk-&gt;begin(), e = blk-&gt;end(); i != e; ++i) {
// the next statement works since operator&lt;&lt;(ostream&amp;,...)
// is overloaded for Instruction&amp;
cerr << *i << endl;
cerr &lt;&lt; *i &lt;&lt; endl;
}
</pre>
However, this isn't really the best way to print out the contents of a
<tt>BasicBlock</tt>! Since the ostream operators are overloaded for
virtually anything you'll care about, you could have just invoked the
print routine on the basic block itself: <tt>cerr << blk <<
endl;</tt>. You might expect this to print out the pointer value of
blk, but operator<< is overloaded for BasicBlock* as well: if you
really want to print the pointer value explicitly, you'll have to
cast.
print routine on the basic block itself: <tt>cerr &lt;&lt; *blk &lt;&lt;
"\n";</tt>.<p>
Note that currently operator&lt;&lt; is implemented for <tt>Value*</tt>, so it
will print out the contents of the pointer, instead of
the pointer value you might expect. This is a deprecated interface that will
be removed in the future, so it's best not to depend on it. To print out the
pointer value for now, you must cast to <tt>void*</tt>.<p>
<!-- _______________________________________________________________________ -->
</ul><h4><a name="iterate_convert"><hr size=0>Turning an iterator into a class