Module repr::adt::numeric [−][src]
Expand description
Functions related to Materialize’s numeric type, which is largely a wrapper
around rust-dec.
Structs
Constants
The maximum number of digits expressable in a numeric.
Traits
Traits to generalize converting Decimal values to and from their
coefficients’ two’s complements.
A type that can represent Real Numbers. Useful for interoperability between Numeric and floating point.
Functions
Returns a new context appropriate for operating on numeric aggregates.
Returns a new context appropriate for operating on numeric datums.
Validates the typ_mod is valid for numeric type and returns a specified scale is appropriate (we ignore the specified precision).
Returns n’s precision, i.e. the total number of digits represented by n
in standard notation not including a zero in the “one’s place” in (-1,1).
Returns n’s scale, i.e. the number of digits used after the decimal point.
Ensures Numeric values are:
Using negative binary numbers can require more digits of precision than
Numeric offers, so we need to have the option to swap bytes’ signs at the
byte- rather than the library-level.
Converts an Numeric into its big endian two’s complement representation.
Converts an Numeric into a big endian two’s complement representation where
the encoded value has NUMERIC_AGG_MAX_PRECISION digits and a scale of
NUMERIC_DATUM_MAX_PRECISION.
Rescale n as an OrderedDecimal with the described scale, or error if:
Rescale’s n to fit within Numeric’s max precision or error if not
possible.
Parses a buffer of two’s complement digits in big-endian order and converts
them to Decimal<N>.