Ask associated streambuf for character when needed instead of
accumulate it in istreambuf_iterator object.
Benefits from this:
- minus one class member in istreambuf_iterator
- trivial synchronization of states of istreambuf_iterator
and associated streambuf
---
libstdc++-v3/include/bits/streambuf_iterator.h | 34 ++++++++++++--------------
1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/libstdc++-v3/include/bits/streambuf_iterator.h b/libstdc++-v3/include/bits/streambuf_iterator.h
index 08fb13b..203da9d 100644
--- a/libstdc++-v3/include/bits/streambuf_iterator.h
+++ b/libstdc++-v3/include/bits/streambuf_iterator.h
@@ -95,19 +95,18 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// NB: This implementation assumes the "end of stream" value
// is EOF, or -1.
mutable streambuf_type* _M_sbuf;
- mutable int_type _M_c;