# simd_uchar16 A vector of sixteen 8-bit unsigned integer elements. ``` typealias simd_uchar16 = SIMD16 ``` ## Topics ### Functions to Create Sixteen-Element Vectors From Other Vectors [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-3fz5p) Returns a new vector from the specified two-element vector, and other elements set to zero. [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-3d3no) Returns a new vector from the specified three-element vector, and other elements set to zero. [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-39lkf) Returns a new vector from the specified four-element vector, and other elements set to zero. [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-2v4kz) Returns a new vector from the specified eight-element vector, and other elements set to zero. [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-3jakr) Returns a new vector from the specified vector. [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-1q2p8) Returns a new vector by truncating the specified thirty two-element vector. [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-4u0bo) Returns a new vector by truncating the specified sixty four-element vector. [`vector16`](/documentation/simd/vector16-5572p) Returns a new vector from the specified vectors. [`simd_make_uchar16(_:_:)`](/documentation/simd/simd_make_uchar16(_:_:)) Returns a new vector from the specified vectors. [`simd_make_uchar16_undef(_:)`](/documentation/simd/simd_make_uchar16_undef(_:)-7pk27) Returns a new vector from the specified two-element vector, and other elements undefined. [`simd_make_uchar16_undef(_:)`](/documentation/simd/simd_make_uchar16_undef(_:)-7sziu) Returns a new vector from the specified three-element vector, and other elements undefined. [`simd_make_uchar16_undef(_:)`](/documentation/simd/simd_make_uchar16_undef(_:)-7jo0t) Returns a new vector from the specified four-element vector, and other elements undefined. [`simd_make_uchar16_undef(_:)`](/documentation/simd/simd_make_uchar16_undef(_:)-74mxt) Returns a new vector from the specified eight-element vector, and other elements undefined. ### Functions to Create Sixteen-Element Vectors From Scalar Values [`simd_make_uchar16(_:)`](/documentation/simd/simd_make_uchar16(_:)-v6ux) Returns a new vector with the first element set to a scalar value, and other elements set to zero. [`simd_make_uchar16_undef(_:)`](/documentation/simd/simd_make_uchar16_undef(_:)-4x6v6) Returns a new vector with the first element set to a scalar value, and other elements undefined. ### Functions to Create Sixteen-Element Vectors From Vectors of Other Types [`simd_uchar`](/documentation/simd/simd_uchar-1lpok) Returns a new vector from the specified vector of 8-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-1lzno) Returns a new vector from the specified vector of 8-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-1lkmc) Returns a new vector from the specified vector of 16-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-1lun8) Returns a new vector from the specified vector of 16-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-1lspo) Returns a new vector from the specified vector of 32-bit, signed integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-1m2sc) Returns a new vector from the specified vector of 32-bit, unsigned integer elements. [`simd_uchar`](/documentation/simd/simd_uchar-1lxyo) Returns a new vector from the specified vector of 32-bit, floating-point elements. ### Functions to Perform Saturating Conversion From Vectors of Other Types [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2l8ia) Returns a new vector from the specified vector of 8-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2lihe) Returns a new vector from the specified vector of 8-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2ldea) Returns a new vector from the specified vector of 16-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2lnde) Returns a new vector from the specified vector of 16-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2ladq) Returns a new vector from the specified vector of 32-bit, signed integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2lkcu) Returns a new vector from the specified vector of 32-bit, unsigned integer elements. [`simd_uchar_sat`](/documentation/simd/simd_uchar_sat-2lhga) Returns a new vector from the specified vector of 32-bit, floating-point elements. ### Common Functions [`simd_clamp(_:_:_:)`](/documentation/simd/simd_clamp(_:_:_:)-1zlhc) Returns each element in a vector clamped to a specified range. [`simd_equal(_:_:)`](/documentation/simd/simd_equal(_:_:)-6la77) Returns true if every element in a vector is exactly equal to the corresponding element in a second vector, and otherwise returns false. ### Reduce Functions [`simd_reduce_min(_:)`](/documentation/simd/simd_reduce_min(_:)-3d193) Returns the miniumum value in a vector. [`simd_reduce_max(_:)`](/documentation/simd/simd_reduce_max(_:)-8inet) Returns the maximum value in a vector. [`simd_reduce_add(_:)`](/documentation/simd/simd_reduce_add(_:)-7n460) Returns the sum of all elements in a vector. ### Extrema Functions [`simd_min(_:_:)`](/documentation/simd/simd_min(_:_:)-8haop) Returns the minimum value of each element in a vector. [`simd_max(_:_:)`](/documentation/simd/simd_max(_:_:)-248h3) Returns the maximum value of each element in a vector. ### Logic and Bitwise Functions [`simd_any(_:)`](/documentation/simd/simd_any(_:)-933sa) [`simd_all(_:)`](/documentation/simd/simd_all(_:)-ikbg) [`simd_bitselect(_:_:_:)`](/documentation/simd/simd_bitselect(_:_:_:)-9i5ku) Returns a vector that contains elements from either the first or second parameter, based on the corresponding element in the third parameter. ### Alternative Type Alias [`vector_uchar16`](/documentation/simd/vector_uchar16) --- Copyright © 2026 Apple Inc. 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