Instance Method (Default implementation)swift 6.0.1Swift

    negate

    Replaces this value with its additive inverse.

    mutating func negate()
    Mangled symbol

    ss13SignedNumericPsE6negateyyFWhat are these?

    FNV24: [4F1OV]

    The following example uses the negate() method to negate the value of an integer x:

    var x = 21
x.negate()
// x == -21

    The resulting value must be representable within the value’s type. In particular, negating a signed, fixed-width integer type’s minimum results in a value that cannot be represented.

    var y = Int8.min
y.negate()
// Overflow error

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