Reduce header dependencies in <iterator>

* include/std/iterator: Include <iosfwd> instead of <istream> and <ostream>. From-SVN: r271169

Reduce header dependencies in <iterator>
* include/std/iterator: Include <iosfwd> instead of <istream> and <ostream>. From-SVN: r271169
22b6a9c1 · Jonathan Wakely · Jonathan Wakely · 7198e982 · 22b6a9c1 · 22b6a9c1
Commit 22b6a9c1 authored May 14, 2019 by Jonathan Wakely Committed by Jonathan Wakely May 14, 2019
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libstdc++-v3/ChangeLog
+3 -0

libstdc++-v3/include/std/iterator
+1 -2

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--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
 2019-05-14  Jonathan Wakely  <jwakely@redhat.com>

+	* include/std/iterator: Include <iosfwd> instead of <istream> and
+	<ostream>.
+
 	* include/bits/stl_tree.h (_Rb_tree::erase(const Key*, const Key*)):
 	Remove unused, non-standard function.


--- a/libstdc++-v3/include/std/iterator
+++ b/libstdc++-v3/include/std/iterator
@@ -61,8 +61,7 @@
 #include <bits/stl_iterator_base_types.h>
 #include <bits/stl_iterator_base_funcs.h>
 #include <bits/stl_iterator.h>
-#include <ostream>
-#include <istream>
+#include <iosfwd>
 #include <bits/stream_iterator.h>
 #include <bits/streambuf_iterator.h>
 #include <bits/range_access.h>