# SIMD Implementations ## Topics ### Operators [`static func & (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/&(_:_:)-5slae) [`static func & (Self, Self) -> Self`](/documentation/Swift/SIMD4/&(_:_:)-6d8rc) [`static func & (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/&(_:_:)-9ctm1) [`static func &* (Self, Self) -> Self`](/documentation/Swift/SIMD4/&*(_:_:)-1tqez) [`static func &* (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/&*(_:_:)-2uiyx) [`static func &* (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/&*(_:_:)-9lt38) [`static func &*= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/&*=(_:_:)-4n42g) [`static func &*= (inout Self, Self)`](/documentation/Swift/SIMD4/&*=(_:_:)-4uao4) [`static func &+ (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/&+(_:_:)-5jhzi) [`static func &+ (Self, Self) -> Self`](/documentation/Swift/SIMD4/&+(_:_:)-6qs5e) [`static func &+ (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/&+(_:_:)-s4hc) [`static func &+= (inout Self, Self)`](/documentation/Swift/SIMD4/&+=(_:_:)-15ft8) [`static func &+= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/&+=(_:_:)-xlyb) [`static func &- (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/&-(_:_:)-4tm0i) [`static func &- (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/&-(_:_:)-6uuv6) [`static func &- (Self, Self) -> Self`](/documentation/Swift/SIMD4/&-(_:_:)-8tbv8) [`static func &-= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/&-=(_:_:)-534my) [`static func &-= (inout Self, Self)`](/documentation/Swift/SIMD4/&-=(_:_:)-8d4df) [`static func &= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/&=(_:_:)-5858j) [`static func &= (inout Self, Self)`](/documentation/Swift/SIMD4/&=(_:_:)-5a8dc) [`static func &<< (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/&__(_:_:)-1cep0) [`static func &>> (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/&__(_:_:)-8w1v6) [`static func &<< (Self, Self) -> Self`](/documentation/Swift/SIMD4/&__(_:_:)-92zqu) [`static func &<< (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/&__(_:_:)-9j33c) [`static func &>> (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/&__(_:_:)-imny) [`static func &>> (Self, Self) -> Self`](/documentation/Swift/SIMD4/&__(_:_:)-olfi) [`static func &>>= (inout Self, Self)`](/documentation/Swift/SIMD4/&__=(_:_:)-2n1ii) [`static func &>>= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/&__=(_:_:)-38btv) [`static func &<<= (inout Self, Self)`](/documentation/Swift/SIMD4/&__=(_:_:)-7dmas) [`static func &<<= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/&__=(_:_:)-83fy1) [`static func * (Self, Self) -> Self`](/documentation/Swift/SIMD4/*(_:_:)-2hvvf) [`static func * (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/*(_:_:)-4cbwu) [`static func * (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/*(_:_:)-4lqdj) [`static func * (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/*(_:_:)-50g1c) [`static func * (Self, Self) -> Self`](/documentation/Swift/SIMD4/*(_:_:)-6kum2) [`static func * (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/*(_:_:)-9wqx4) [`static func *= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/*=(_:_:)-27n78) [`static func *= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/*=(_:_:)-3zlny) [`static func *= (inout Self, Self)`](/documentation/Swift/SIMD4/*=(_:_:)-4iyd7) [`static func *= (inout Self, Self)`](/documentation/Swift/SIMD4/*=(_:_:)-5qw5a) [`static func + (Self, Self) -> Self`](/documentation/Swift/SIMD4/+(_:_:)-1h7vz) [`static func + (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/+(_:_:)-1s5sj) [`static func + (Self, Self) -> Self`](/documentation/Swift/SIMD4/+(_:_:)-2bds5) [`static func + (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/+(_:_:)-62rmr) [`static func + (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/+(_:_:)-842lq) [`static func + (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/+(_:_:)-9w9vl) [`static func += (inout Self, Self)`](/documentation/Swift/SIMD4/+=(_:_:)-13aaq) [`static func += (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/+=(_:_:)-33gh7) [`static func += (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/+=(_:_:)-3itnf) [`static func += (inout Self, Self)`](/documentation/Swift/SIMD4/+=(_:_:)-4kfxk) [`static func - (Self) -> Self`](/documentation/Swift/SIMD4/-(_:)) [`static func - (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/-(_:_:)-1epj7) [`static func - (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/-(_:_:)-59rjl) [`static func - (Self, Self) -> Self`](/documentation/Swift/SIMD4/-(_:_:)-5hvnn) [`static func - (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/-(_:_:)-5rdme) [`static func - (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/-(_:_:)-8par9) [`static func - (Self, Self) -> Self`](/documentation/Swift/SIMD4/-(_:_:)-8vs0w) [`static func -= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/-=(_:_:)-5eh2w) [`static func -= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/-=(_:_:)-6asc1) [`static func -= (inout Self, Self)`](/documentation/Swift/SIMD4/-=(_:_:)-8oxw3) [`static func -= (inout Self, Self)`](/documentation/Swift/SIMD4/-=(_:_:)-90eug) [`static func .!= (Self.Scalar, Self) -> SIMDMask`](/documentation/Swift/SIMD4/.!=(_:_:)-1o6bl) Returns a vector mask with the result of a pointwise inequality comparison. [`static func .!= (Self, Self.Scalar) -> SIMDMask`](/documentation/Swift/SIMD4/.!=(_:_:)-5kor1) Returns a vector mask with the result of a pointwise inequality comparison. [`static func .!= (Self, Self) -> SIMDMask`](/documentation/Swift/SIMD4/.!=(_:_:)-70nnx) A vector mask with the result of a pointwise inequality comparison. [`static func .== (Self.Scalar, Self) -> SIMDMask`](/documentation/Swift/SIMD4/.==(_:_:)-1q28g) Returns a vector mask with the result of a pointwise equality comparison. [`static func .== (Self, Self.Scalar) -> SIMDMask`](/documentation/Swift/SIMD4/.==(_:_:)-4deu7) Returns a vector mask with the result of a pointwise equality comparison. [`static func .== (Self, Self) -> SIMDMask`](/documentation/Swift/SIMD4/.==(_:_:)-862bq) A vector mask with the result of a pointwise equality comparison. [`static func .< (Self.Scalar, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._(_:_:)-2n4ry) Returns a vector mask with the result of a pointwise less than comparison. [`static func .> (Self.Scalar, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._(_:_:)-3iokg) Returns a vector mask with the result of a pointwise greater than comparison. [`static func .< (Self, Self.Scalar) -> SIMDMask`](/documentation/Swift/SIMD4/._(_:_:)-49xlm) Returns a vector mask with the result of a pointwise less than comparison. [`static func .< (Self, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._(_:_:)-5lcly) Returns a vector mask with the result of a pointwise less than comparison. [`static func .> (Self, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._(_:_:)-5wiit) Returns a vector mask with the result of a pointwise greater than comparison. [`static func .> (Self, Self.Scalar) -> SIMDMask`](/documentation/Swift/SIMD4/._(_:_:)-6yo8s) Returns a vector mask with the result of a pointwise greater than comparison. [`static func .>= (Self.Scalar, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._=(_:_:)-136h6) Returns a vector mask with the result of a pointwise greater than or equal comparison. [`static func .<= (Self, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._=(_:_:)-1wt9c) Returns a vector mask with the result of a pointwise less than or equal comparison. [`static func .<= (Self, Self.Scalar) -> SIMDMask`](/documentation/Swift/SIMD4/._=(_:_:)-3m2gb) Returns a vector mask with the result of a pointwise less than or equal comparison. [`static func .>= (Self, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._=(_:_:)-41pqm) Returns a vector mask with the result of a pointwise greater than or equal comparison. [`static func .<= (Self.Scalar, Self) -> SIMDMask`](/documentation/Swift/SIMD4/._=(_:_:)-5k06k) Returns a vector mask with the result of a pointwise less than or equal comparison. [`static func .>= (Self, Self.Scalar) -> SIMDMask`](/documentation/Swift/SIMD4/._=(_:_:)-9pb8l) Returns a vector mask with the result of a pointwise greater than or equal comparison. [`static func == (Self, Self) -> Bool`](/documentation/Swift/SIMD4/==(_:_:)) Returns a Boolean value indicating whether two vectors are equal. [`static func | (Self, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-1t5na) [`static func / (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-2nxne) [`static func / (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-2o6l7) [`static func % (Self, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-2sm0z) [`static func / (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-2zaxu) [`static func | (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-3pcys) [`static func / (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-3voib) [`static func ^ (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-6f0hu) [`static func ^ (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-6fvmb) [`static func | (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-7uxx) [`static func ^ (Self, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-7vfdm) [`static func % (Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-907nj) [`static func / (Self, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-93465) [`static func % (Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-9i1yt) [`static func / (Self, Self) -> Self`](/documentation/Swift/SIMD4/_(_:_:)-9ipq5) [`static func /= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/_=(_:_:)-18ijd) [`static func |= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/_=(_:_:)-1tg44) [`static func /= (inout Self, Self)`](/documentation/Swift/SIMD4/_=(_:_:)-5bzrx) [`static func |= (inout Self, Self)`](/documentation/Swift/SIMD4/_=(_:_:)-6khqe) [`static func %= (inout Self, Self)`](/documentation/Swift/SIMD4/_=(_:_:)-72383) [`static func /= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/_=(_:_:)-7u2en) [`static func ^= (inout Self, Self)`](/documentation/Swift/SIMD4/_=(_:_:)-8jvxp) [`static func %= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/_=(_:_:)-9a2l6) [`static func /= (inout Self, Self)`](/documentation/Swift/SIMD4/_=(_:_:)-9iy46) [`static func ^= (inout Self, Self.Scalar)`](/documentation/Swift/SIMD4/_=(_:_:)-syej) [`static func ~ (Self) -> Self`](/documentation/Swift/SIMD4/~(_:)) ### Initializers [`init(S)`](/documentation/Swift/SIMD4/init(_:)-3eyf0) Creates a vector from the given sequence. [`init(arrayLiteral: Self.Scalar...)`](/documentation/Swift/SIMD4/init(arrayLiteral:)) Creates a vector from the specified elements. [`init(from: any Decoder) throws`](/documentation/Swift/SIMD4/init(from:)) Creates a new vector by decoding scalars from the given decoder. [`init(repeating: Self.Scalar)`](/documentation/Swift/SIMD4/init(repeating:)-97szw) A vector with the specified scalar in all lanes. ### Instance Properties [`var description: String`](/documentation/Swift/SIMD4/description) A textual description of the vector. [`var indices: Range`](/documentation/Swift/SIMD4/indices) The valid indices for subscripting the vector. [`var leadingZeroBitCount: Self`](/documentation/Swift/SIMD4/leadingZeroBitCount) [`var nonzeroBitCount: Self`](/documentation/Swift/SIMD4/nonzeroBitCount) [`var trailingZeroBitCount: Self`](/documentation/Swift/SIMD4/trailingZeroBitCount) ### Instance Methods [`func addProduct(Self, Self)`](/documentation/Swift/SIMD4/addProduct(_:_:)-24met) [`func addProduct(Self.Scalar, Self)`](/documentation/Swift/SIMD4/addProduct(_:_:)-48fq9) [`func addProduct(Self, Self.Scalar)`](/documentation/Swift/SIMD4/addProduct(_:_:)-8hr4k) [`func addingProduct(Self, Self.Scalar) -> Self`](/documentation/Swift/SIMD4/addingProduct(_:_:)-1ncc9) [`func addingProduct(Self.Scalar, Self) -> Self`](/documentation/Swift/SIMD4/addingProduct(_:_:)-76ryo) [`func addingProduct(Self, Self) -> Self`](/documentation/Swift/SIMD4/addingProduct(_:_:)-94txm) [`func clamp(lowerBound: Self, upperBound: Self)`](/documentation/Swift/SIMD4/clamp(lowerBound:upperBound:)-77gjj) [`func clamp(lowerBound: Self, upperBound: Self)`](/documentation/Swift/SIMD4/clamp(lowerBound:upperBound:)-9hcyl) [`func clamped(lowerBound: Self, upperBound: Self) -> Self`](/documentation/Swift/SIMD4/clamped(lowerBound:upperBound:)-4qp6n) [`func clamped(lowerBound: Self, upperBound: Self) -> Self`](/documentation/Swift/SIMD4/clamped(lowerBound:upperBound:)-8tlkk) [`func encode(to: any Encoder) throws`](/documentation/Swift/SIMD4/encode(to:)) Encodes the scalars of this vector into the given encoder in an unkeyed container. [`func formSquareRoot()`](/documentation/Swift/SIMD4/formSquareRoot()) [`func hash(into: inout Hasher)`](/documentation/Swift/SIMD4/hash(into:)) Hashes the elements of the vector using the given hasher. [`func max() -> Self.Scalar`](/documentation/Swift/SIMD4/max()-71kv9) The greatest element in the vector. [`func max() -> Self.Scalar`](/documentation/Swift/SIMD4/max()-xww7) The greatest scalar in the vector. [`func min() -> Self.Scalar`](/documentation/Swift/SIMD4/min()-7qq8b) The least scalar in the vector. [`func min() -> Self.Scalar`](/documentation/Swift/SIMD4/min()-8s3i4) The least element in the vector. [`func replace(with: Self, where: SIMDMask)`](/documentation/Swift/SIMD4/replace(with:where:)-7e4sy) Replaces elements of this vector with elements of `other` in the lanes where `mask` is `true`. [`func replace(with: Self.Scalar, where: SIMDMask)`](/documentation/Swift/SIMD4/replace(with:where:)-7yqkl) Replaces elements of this vector with `other` in the lanes where `mask` is `true`. [`func replacing(with: Self, where: SIMDMask) -> Self`](/documentation/Swift/SIMD4/replacing(with:where:)-32h18) Returns a copy of this vector, with elements replaced by elements of `other` in the lanes where `mask` is `true`. [`func replacing(with: Self.Scalar, where: SIMDMask) -> Self`](/documentation/Swift/SIMD4/replacing(with:where:)-3o8ie) Returns a copy of this vector, with elements `other` in the lanes where `mask` is `true`. [`func round(FloatingPointRoundingRule)`](/documentation/Swift/SIMD4/round(_:)) [`func rounded(FloatingPointRoundingRule) -> Self`](/documentation/Swift/SIMD4/rounded(_:)) A vector formed by rounding each lane of the source vector to an integral value according to the specified rounding `rule`. [`func squareRoot() -> Self`](/documentation/Swift/SIMD4/squareRoot()) [`func sum() -> Self.Scalar`](/documentation/Swift/SIMD4/sum()) The sum of the scalars in the vector. [`func wrappedSum() -> Self.Scalar`](/documentation/Swift/SIMD4/wrappedSum()) Returns the sum of the scalars in the vector, computed with wrapping addition. ### Type Properties [`static var one: Self`](/documentation/Swift/SIMD4/one-1ghcj) A vector with one in all lanes. [`static var one: Self`](/documentation/Swift/SIMD4/one-7ejbf) A vector with one in all lanes. [`static var zero: Self`](/documentation/Swift/SIMD4/zero-1xe4n) A vector with zero in all lanes. [`static var zero: Self`](/documentation/Swift/SIMD4/zero-6rkq8) A vector with zero in all lanes. ### Type Methods [`static func random(in: ClosedRange) -> Self`](/documentation/Swift/SIMD4/random(in:)-3wdfs) Returns a vector with random values from within the specified range in all lanes. [`static func random(in: Range) -> Self`](/documentation/Swift/SIMD4/random(in:)-6jl8o) Returns a vector with random values from within the specified range in all lanes. [`static func random(in: ClosedRange, using: inout T) -> Self`](/documentation/Swift/SIMD4/random(in:using:)-6da4k) Returns a vector with random values from within the specified range in all lanes, using the given generator as a source for randomness. [`static func random(in: Range, using: inout T) -> Self`](/documentation/Swift/SIMD4/random(in:using:)-7x9mr) Returns a vector with random values from within the specified range in all lanes, using the given generator as a source for randomness. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)