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

This is the documentation for a snapshot of the master branch, built from commit 5002c2d6a2.
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object::at

Access the specified element, with bounds checking.

value&
at(
    string_view key);
  » more...

value const&
at(
    string_view key) const;
  » more...

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