Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

http::basic_fields::operator=

Move assignment.

basic_fields&
operator=(
    basic_fields&&);
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Copy assignment.

basic_fields&
operator=(
    basic_fields const&);
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template<
    class OtherAlloc>
basic_fields&
operator=(
    basic_fields< OtherAlloc > const&);
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