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## Function template fixed_string_to_int

boost::date_time::fixed_string_to_int — Helper function for parsing fixed length strings into integers.

## Synopsis

    // In header: <boost/date_time/format_date_parser.hpp>

    template<typename int_type, typename charT>
      int_type fixed_string_to_int(std::istreambuf_iterator< charT > & itr,
                                   std::istreambuf_iterator< charT > & stream_end,
                                   parse_match_result< charT > & mr,
                                   unsigned int length);

## Description

Will consume 'length' number of characters from stream. Consumed character are transfered to `parse_match_result` struct. Returns '-1' if no number can be parsed or incorrect number of digits in stream.