Struct FloatArithmetic 

pub struct FloatArithmetic<'a> {
    pub floor_log10: &'a dyn Fn(&str) -> String,
    pub power_of_ten: &'a dyn Fn(&str) -> String,
    pub whole_text: &'a dyn Fn(&str) -> String,
    pub text: TextFunctions<'a>,
}

How an engine with no printf spells the arithmetic computed_float_text does. Each closure is handed the SQL of its operand.

Fields

floor_log10: &'a dyn Fn(&str) -> String

The base-ten logarithm of a positive number, rounded down to a whole number: CAST(FLOOR(LOG10(x)) AS INTEGER).

power_of_ten: &'a dyn Fn(&str) -> String

Ten to a whole power, as a floating number: POWER(10, x).

whole_text: &'a dyn Fn(&str) -> String

A whole number of up to nineteen digits as text, with no point: CAST(CAST(x AS DECIMAL(19, 0)) AS VARCHAR(19)).

text: TextFunctions<'a>

The text functions the layout uses.