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## Function template var_string_to_int

boost::date_time::var_string_to_int — Helper function for parsing varied length strings into integers.

## Synopsis

    template<typename int_type, typename charT>
      int_type var_string_to_int(std::istreambuf_iterator< charT > & itr,
                                 std::istreambuf_iterator< charT > & stream_end,
                                 unsigned int max_length);

## Description

Will consume 'max_length' characters from stream only if those characters are digits. Returns '-1' if no number can be parsed. Will not parse a number preceeded by a '+' or '-'.

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