mirror of
https://github.com/boostorg/iterator.git
synced 2025-05-11 13:33:56 +00:00
3d3560c12d
Some (strict) C++03 compilers (e.g. `gcc -std=c++03`) reject 'reference-to-reference' in the template and typedef which described in CWG DR106 [1]. In such situations, iterator_facade rejects reference type as a value type and some special iterators will become ill-formed: the test libs/range/test/join.hpp might be descriptive. [1] http://www.open-std.org/Jtc1/sc22/wg21/docs/cwg_defects.html#106 Signed-off-by: Kohei Takahashi <flast@flast.jp>