# simd_char8 A vector of eight 8-bit signed integer elements. ``` typealias simd_char8 = SIMD8 ``` ## Topics ### Functions to Create Eight-Element Vectors From Other Vectors [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-3e9h4) Returns a new vector from the specified two-element vector, and other elements set to zero. [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-39q4x) Returns a new vector from the specified three-element vector, and other elements set to zero. [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-3y2oy) Returns a new vector from the specified four-element vector, and other elements set to zero. [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-4c00u) Returns a new vector from the specified vector. [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-497r7) Returns a new vector by truncating the specified sixteen-element vector. [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-tbln) Returns a new vector by truncating the specified thrity two-element vector. [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-4m1k5) Returns a new vector by truncating the specified sixty four-element vector. [`simd_make_char8(_:_:)`](/documentation/simd/simd_make_char8(_:_:)) Returns a new vector from the specified vectors. [`vector8`](/documentation/simd/vector8-73z2d) Returns a new vector from the specified vectors. [`simd_make_char8_undef(_:)`](/documentation/simd/simd_make_char8_undef(_:)-4zw8k) Returns a new vector from the specified two-element vector, and other elements undefined. [`simd_make_char8_undef(_:)`](/documentation/simd/simd_make_char8_undef(_:)-53bml) Returns a new vector from the specified three-element vector, and other elements undefined. [`simd_make_char8_undef(_:)`](/documentation/simd/simd_make_char8_undef(_:)-5kqwe) Returns a new vector from the specified four-element vector, and other elements undefined. ### Functions to Create Eight-Element Vectors From Scalar Values [`simd_make_char8(_:)`](/documentation/simd/simd_make_char8(_:)-2wraz) Returns a new vector with the first element set to a scalar value, and other elements set to zero. [`simd_make_char8_undef(_:)`](/documentation/simd/simd_make_char8_undef(_:)-830qy) Returns a new vector with the first element set to a scalar value, and other elements undefined. ### Functions to Create Eight-Element Vectors From Vectors of Other Types [`simd_char`](/documentation/simd/simd_char-7azp6) Returns a new vector from the specified vector of 8-bit, signed integer elements. [`simd_char`](/documentation/simd/simd_char-7apve) Returns a new vector from the specified vector of 8-bit, unsigned integer elements. [`simd_char`](/documentation/simd/simd_char-7b4ze) Returns a new vector from the specified vector of 16-bit, signed integer elements. [`simd_char`](/documentation/simd/simd_char-7aure) Returns a new vector from the specified vector of 16-bit, unsigned integer elements. [`simd_char`](/documentation/simd/simd_char-7b2w6) Returns a new vector from the specified vector of 32-bit, signed integer elements. [`simd_char`](/documentation/simd/simd_char-7at2e) Returns a new vector from the specified vector of 32-bit, unsigned integer elements. [`simd_char`](/documentation/simd/simd_char-7b3y6) Returns a new vector from the specified vector of 64-bit, signed integer elements. [`simd_char`](/documentation/simd/simd_char-7au4e) Returns a new vector from the specified vector of 64-bit, unsigned integer elements. [`simd_char`](/documentation/simd/simd_char-7aqw2) Returns a new vector from the specified vector of 32-bit, floating-point elements. [`simd_char`](/documentation/simd/simd_char-7arha) Returns a new vector from the specified vector of 64-bit, floating-point elements. ### Functions to Perform Saturating Conversion From Vectors of Other Types [`simd_char_sat`](/documentation/simd/simd_char_sat-1k3vb) Returns a new vector from the specified vector of 8-bit, signed integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1kdqv) Returns a new vector from the specified vector of 8-bit, unsigned integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1jyvr) Returns a new vector from the specified vector of 16-bit, signed integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1k8uv) Returns a new vector from the specified vector of 16-bit, unsigned integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1k1zv) Returns a new vector from the specified vector of 32-bit, signed integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1kbyz) Returns a new vector from the specified vector of 32-bit, unsigned integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1k125) Returns a new vector from the specified vector of 64-bit, signed integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1kb19) Returns a new vector from the specified vector of 64-bit, unsigned integer elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1kcv9) Returns a new vector from the specified vector of 32-bit, floating-point elements. [`simd_char_sat`](/documentation/simd/simd_char_sat-1kdj1) Returns a new vector from the specified vector of 64-bit, floating-point elements. ### Common Functions [`simd_abs(_:)`](/documentation/simd/simd_abs(_:)-7oowg) Returns the absolute value of each element in a vector. [`simd_clamp(_:_:_:)`](/documentation/simd/simd_clamp(_:_:_:)-6t9ze) Returns each element in a vector clamped to a specified range. [`simd_equal(_:_:)`](/documentation/simd/simd_equal(_:_:)-7xed4) 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(_:)-3omfa) Returns the miniumum value in a vector. [`simd_reduce_max(_:)`](/documentation/simd/simd_reduce_max(_:)-55mb2) Returns the maximum value in a vector. [`simd_reduce_add(_:)`](/documentation/simd/simd_reduce_add(_:)-3b8ak) Returns the sum of all elements in a vector. ### Extrema Functions [`simd_min(_:_:)`](/documentation/simd/simd_min(_:_:)-66w6r) Returns the minimum value of each element in a vector. [`simd_max(_:_:)`](/documentation/simd/simd_max(_:_:)-1zyht) Returns the maximum value of each element in a vector. ### Logic and Bitwise Functions [`simd_any(_:)`](/documentation/simd/simd_any(_:)-6plnr) [`simd_all(_:)`](/documentation/simd/simd_all(_:)-1yyw9) [`simd_bitselect(_:_:_:)`](/documentation/simd/simd_bitselect(_:_:_:)-5bgc3) 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_char8`](/documentation/simd/vector_char8) --- 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)