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Editorial Team
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Asked: 2026-05-19T12:45:55+00:00

What is the minimal set of nested typedefs that should be defined in a

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What is the minimal set of nested typedefs that should be defined in a custom STL class meeting the Sequence concept? The custom sequence should be compatible with:

  1. std::back_insert_iterator
  2. BOOST_FOREACH
  3. Boost range concept.
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1 Answer

  1. Editorial Team

    The C++ Standard says all containers must have the following typedefs (C++03 23.1/Table 65):

    value_type
reference
const_reference
iterator
const_iterator
difference_type
size_type

    Reversible containers must have the following typedefs (C++03 23.1/Table 66):

    reverse_iterator
const_reverse_iterator
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