プログラマの血液型

>>356 ほい、置換関数(C++) Ｂ型作

template< class OIRES, class IISRC, class IIFIND, class IIREPLACE, class COPY_OP, class SEARCH_OP >
OIRES replace( OIRES out_begin, IISRC src_begin, IISRC src_end, IIFIND find_begin, IIFIND find_end,
　　　　　　　 IIREPLACE replace_begin, IIREPLACE replace_end, COPY_OP copy_op, SEARCH_OP search_op,
　　　　　　　 int count = -1 )
{
　if ( src_end <= src_begin ) return out_begin;
　if ( find_end <= find_begin ) return copy_op( src_begin, src_end, out_begin );
　if ( count == 0 ) return copy_op( src_begin, src_end, out_begin );
　if ( replace_end < replace_begin ) replace_end = replace_begin;
　size_t find_size = find_end - find_begin;
　size_t replace_size = replace_end - replace_begin;
　OIRES out_pos = out_begin;
　IISRC findpos;
　IISRC last_find = src_begin;
　int repcnt = 0;
　while ( findpos = search_op( last_find, src_end, find_begin, find_end ),
　　findpos != src_end && ( count < 0 || repcnt < count ) ){
　　out_pos = copy_op( last_find, findpos, out_pos );
　　out_pos = copy_op( replace_begin, replace_end, out_pos );
　　findpos += find_size;
　　last_find = findpos;
　　repcnt++;
　}
　out_pos = copy_op( last_find, src_end, out_pos );
　return out_pos;
}

//コメントがないのがＢ型らしい？