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OperatorFoundationEssentials

+=(_:_:)

iOS 8.0+ iPadOS 8.0+ Mac Catalyst 8.0+ macOS 10.10+ tvOS 9.0+ watchOS 2.0+
Adds two decimal numbers, storing the result in the first number.
static func += (lhs: inout Decimal, rhs: Decimal)

Parameters

lhs

A value to add.

rhs

Another value to add.

Discussion

If the result of this operation requires more precision than the Decimal type can provide, the result is rounded using the NSDecimalNumber/RoundingMode/plain rounding mode. To specify a different rounding mode, use the NSDecimalAdd(_:_:_:_:) function instead.