file_system::path::assign clears and appends, precluding assignment to a leading substring of self

[joe.pendergast@…]

template <class InputIterator> basic_path & assign( InputIterator first, InputIterator last )

{ m_path.clear(); append( first, last ); return *this; }

this implementation precludes assigning to a path a leading substring of that path itself because most impl's string_type::clear will end up setting the first char to 0. I could not find documentation that explicitly precludes this.

As stated most impl's will end up setting the first char to 0, so this seems to fix in those implementations:

{

typename string_type::value_type c; if(first!=last)c = *first; m_path.clear(); append( first, last ); if(first!=last) mPath[0] = c; return *this;

}

[anonymous]

m_path[0] = c;

[Beman Dawes]

Fix by changeset ​https://svn.boost.org/trac/boost/search?q=76541

Thanks for the report!

--Beman