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 develop branch, built from commit adcd4c09f0.

Return a string pointer if this is a string, else return nullptr

string const*
if_string() const;
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string*
if_string();
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