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'std::_Bit_iterator' and 'std::_Bit_const_iterator' are the iterators
used by 'std::vector<bool>'.
'std::_Bit_reference' is e.g. used in range-based for loops over
'std::vector<bool>' like
std::vector<bool> vb {true, false, false};
for (auto b : vb) {
// b is of type std::_Bit_reference here
// ...
}
Like iterators of vectors for other types, the actual value is printed.
libstdc++-v3/ChangeLog:
* python/libstdcxx/v6/printers.py (StdBitIteratorPrinter)
(StdBitReferencePrinter): Add pretty-printers for
_Bit_reference, _Bit_iterator and _Bit_const_iterator.
* testsuite/libstdc++-prettyprinters/simple.cc: Test
std::_Bit_reference, std::_Bit_iterator and
std::_Bit_const_iterator.
* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
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