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Item_real_func(Item *a,Item *b) :Item_func(a,b) {}
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Item_real_func(List<Item> &list) :Item_func(list) {}
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String *val_str(String*str);
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enum Item_result result_type () const { return REAL_RESULT; }
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void fix_length_and_dec();
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#endif /* DRIZZLED_FUNCTION_MATH_REAL_H */