Number protocol

From Erights

For some type T which is like a number, these are the conventional messages to implement.

This protocol is implemented by Integer and Float64.

XXX This list is not complete, not properly documented, and not discussed.

Contents 1 Protocol 1.1 add/1 1.2 subtract/1 1.3 multiply/1 1.4 floorDivide/1 1.5 approxDivide/1 1.6 negate/0 1.7 abs/0 1.8 max/1 1.9 min/1

Protocol

add/1

Signature: add(other :T) :T

Sugar expansion of +. XXX write documentation

subtract/1

Signature: subtract(other :T) :T

Sugar expansion of -. XXX write documentation

multiply/1

Signature: multiply(other :T) :T

Sugar expansion of *. XXX write documentation

floorDivide/1

Signature: floorDivide(other :T) :T

Sugar expansion of //. XXX write documentation

approxDivide/1

Signature: approxDivide(other :T) :T

Sugar expansion of /. XXX write documentation

negate/0

Signature: negate() :T

Sugar expansion of -. Return the additive inverse of the receiver.

abs/0

Signature: abs() :T

Return the absolute value of the receiver.

max/1

Signature: max(other :T) :T

Compare the recipient to other, and return whichever is greater.

min/1

Signature: min(other :T) :T

Compare the recipient to other, and return whichever is lesser.

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