# Integer to double-precision floating-point conversion Perform element-wise integer to double-precision floating-point conversion. ## Topics ### 8-bit integer to floating point conversion [`static func integerToFloatingPoint(T, floatingPointType: U.Type) -> [U]`](/documentation/Accelerate/vDSP/integerToFloatingPoint(_:floatingPointType:)-7479i) Returns a vector of floating-point values converted from signed 8-bit integer values. [`static func integerToFloatingPoint(T, floatingPointType: U.Type) -> [U]`](/documentation/Accelerate/vDSP/integerToFloatingPoint(_:floatingPointType:)-8jgqh) Returns a vector of floating-point values converted from unsigned 8-bit integer values. [`static func convertElements(of: U, to: inout V)`](/documentation/Accelerate/vDSP/convertElements(of:to:)-3jcmt) Converts 8-bit signed integers to double-precision values. [`static func convertElements(of: U, to: inout V)`](/documentation/Accelerate/vDSP/convertElements(of:to:)-1jwgk) Converts 8-bit unsigned integers to double-precision values. [`extern void vDSP_vflt8D(const char *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vflt8D) Converts a vector of signed 8-bit integers to double-precision floating-point values. [`extern void vDSP_vfltu8D(const unsigned char *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfltu8D) Converts an array of unsigned 8-bit integers to double-precision floating-point values. ### 16-bit integer to floating point conversion [`static func integerToFloatingPoint(T, floatingPointType: U.Type) -> [U]`](/documentation/Accelerate/vDSP/integerToFloatingPoint(_:floatingPointType:)-5os5n) Returns a vector of floating-point values converted from signed 16-bit integer values. [`static func integerToFloatingPoint(T, floatingPointType: U.Type) -> [U]`](/documentation/Accelerate/vDSP/integerToFloatingPoint(_:floatingPointType:)-2xoiz) Returns a vector of floating-point values converted from unsigned 16-bit integer values. [`static func convertElements(of: U, to: inout V)`](/documentation/Accelerate/vDSP/convertElements(of:to:)-3j3tb) Converts 16-bit signed integers to double-precision values. [`static func convertElements(of: U, to: inout V)`](/documentation/Accelerate/vDSP/convertElements(of:to:)-4sj10) Converts 16-bit unsigned integers to double-precision values. [`extern void vDSP_vflt16D(const short *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vflt16D) Converts a vector of signed 16-bit integers to double-precision floating-point values. [`extern void vDSP_vfltu16D(const unsigned short *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfltu16D) Converts an array of unsigned 16-bit integers to double-precision floating-point values. ### 32-bit integer to floating point conversion [`static func integerToFloatingPoint(T, floatingPointType: U.Type) -> [U]`](/documentation/Accelerate/vDSP/integerToFloatingPoint(_:floatingPointType:)-8b7ni) Returns a vector of floating-point values converted from signed 32-bit integer values. [`static func integerToFloatingPoint(T, floatingPointType: U.Type) -> [U]`](/documentation/Accelerate/vDSP/integerToFloatingPoint(_:floatingPointType:)-23d97) Returns a vector of floating-point values converted from unsigned 32-bit integer values. [`static func convertElements(of: U, to: inout V)`](/documentation/Accelerate/vDSP/convertElements(of:to:)-7itb5) Converts 32-bit signed integers to double-precision values. [`static func convertElements(of: U, to: inout V)`](/documentation/Accelerate/vDSP/convertElements(of:to:)-4es14) Converts 32-bit unsigned integers to double-precision values. [`extern void vDSP_vflt32D(const int *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vflt32D) Converts a vector of signed 32-bit integers to double-precision floating-point values. [`extern void vDSP_vfltu32D(const unsigned int *__A, vDSP_Stride __IA, double *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfltu32D) Converts an array of unsigned 32-bit integers to double-precision floating-point values. --- 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)