# Single-precision floating point to integer conversion Perform element-wise single-precision floating-point to integer conversion. ## Topics ### Floating point to integer conversion [`static func floatingPointToInteger(T, integerType: U.Type, rounding: vDSP.RoundingMode) -> [U]`](/documentation/Accelerate/vDSP/floatingPointToInteger(_:integerType:rounding:)-9z84u) Returns single-precision values converted to integer values. [`enum RoundingMode`](/documentation/Accelerate/vDSP/RoundingMode) Floating point to integer conversion rounding modes. ### Floating point to 8-bit integer conversion The functions in this group convert the values in a vector from floating-point values to integer values of a given size. [`static func convertElements(of: U, to: inout V, rounding: vDSP.RoundingMode)`](/documentation/Accelerate/vDSP/convertElements(of:to:rounding:)-48635) Converts single-precision values to 8-bit signed integers. [`static func convertElements(of: U, to: inout V, rounding: vDSP.RoundingMode)`](/documentation/Accelerate/vDSP/convertElements(of:to:rounding:)-9qu7f) Converts single-precision values to 8-bit unsigned integers. [`enum RoundingMode`](/documentation/Accelerate/vDSP/RoundingMode) Floating point to integer conversion rounding modes. [`extern void vDSP_vfix8(const float *__A, vDSP_Stride __IA, char *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfix8) Converts a vector of single-precision floating-point values to signed 8-bit integer values, and rounds towards zero. [`extern void vDSP_vfixr8(const float *__A, vDSP_Stride __IA, char *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixr8) Converts a vector of single-precision floating-point values to signed 8-bit integer values, and rounds towards the nearest integer. [`extern void vDSP_vfixu8(const float *__A, vDSP_Stride __IA, unsigned char *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixu8) Converts a vector of single-precision floating-point values to unsigned 8-bit integer values, and rounds towards zero. [`extern void vDSP_vfixru8(const float *__A, vDSP_Stride __IA, unsigned char *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixru8) Converts a vector of single-precision floating-point values to unsigned 8-bit integer values, and rounds towards the nearest integer. ### Floating point to 16-bit integer conversion [`static func convertElements(of: U, to: inout V, rounding: vDSP.RoundingMode)`](/documentation/Accelerate/vDSP/convertElements(of:to:rounding:)-slaa) Converts single-precision values to 16-bit signed integers. [`static func convertElements(of: U, to: inout V, rounding: vDSP.RoundingMode)`](/documentation/Accelerate/vDSP/convertElements(of:to:rounding:)-3tofv) Converts single-precision values to 16-bit unsigned integers. [`enum RoundingMode`](/documentation/Accelerate/vDSP/RoundingMode) Floating point to integer conversion rounding modes. [`extern void vDSP_vfix16(const float *__A, vDSP_Stride __IA, short *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfix16) Converts a vector of single-precision floating-point values to signed 16-bit integer values, and rounds towards zero. [`extern void vDSP_vfixr16(const float *__A, vDSP_Stride __IA, short *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixr16) Converts a vector of single-precision floating-point values to signed 16-bit integer values, and rounds towards the nearest integer. [`extern void vDSP_vfixu16(const float *__A, vDSP_Stride __IA, unsigned short *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixu16) Converts a vector of single-precision floating-point values to unsigned 16-bit integer values, and rounds towards zero. [`extern void vDSP_vfixru16(const float *__A, vDSP_Stride __IA, unsigned short *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixru16) Converts a vector of single-precision floating-point values to unsigned 16-bit integer values, and rounds towards the nearest integer. ### Floating point to 24-bit integer conversion The functions in this group scale and convert floating-point values to and from signed 24-bit integer values. [`extern void vDSP_vsmfix24(const float *__A, vDSP_Stride __IA, const float *__B, vDSP_int24 *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vsmfix24) Converts a vector of single-precision floating-point values to signed 24-bit integer values, and rounds towards zero. [`extern void vDSP_vsmfixu24(const float *__A, vDSP_Stride __IA, const float *__B, vDSP_uint24 *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vsmfixu24) Converts a vector of single-precision floating-point values to signed 24-bit integer values, and rounds towards the nearest integer. [`struct vDSP_int24`](/documentation/Accelerate/vDSP_int24) A data structure that holds a 24-bit signed integer value. [`struct vDSP_uint24`](/documentation/Accelerate/vDSP_uint24) A data structure that holds a 24-bit unsigned integer value. ### Floating point to 32-bit integer conversion [`static func convertElements(of: U, to: inout V, rounding: vDSP.RoundingMode)`](/documentation/Accelerate/vDSP/convertElements(of:to:rounding:)-2dsry) Converts single-precision values to 32-bit signed integers. [`static func convertElements(of: U, to: inout V, rounding: vDSP.RoundingMode)`](/documentation/Accelerate/vDSP/convertElements(of:to:rounding:)-14dc1) Converts single-precision values to 32-bit unsigned integers. [`enum RoundingMode`](/documentation/Accelerate/vDSP/RoundingMode) Floating point to integer conversion rounding modes. [`extern void vDSP_vfix32(const float *__A, vDSP_Stride __IA, int *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfix32) Converts a vector of single-precision floating-point values to signed 32-bit integer values, and rounds towards zero. [`extern void vDSP_vfixr32(const float *__A, vDSP_Stride __IA, int *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixr32) Converts a vector of single-precision floating-point values to signed 32-bit integer values, and rounds towards the nearest integer. [`extern void vDSP_vfixu32(const float *__A, vDSP_Stride __IA, unsigned int *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixu32) Converts a vector of single-precision floating-point values to unsigned 32-bit integer values, and rounds towards zero. [`extern void vDSP_vfixru32(const float *__A, vDSP_Stride __IA, unsigned int *__C, vDSP_Stride __IC, vDSP_Length __N);`](/documentation/Accelerate/vDSP_vfixru32) Converts a vector of single-precision floating-point values to unsigned 32-bit integer values, and rounds towards the nearest integer. --- 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)