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Reserved_Data_Types - Built-in reserved Data Types.


The data type names described in the table below are reserved and cannot be used by applications as user-defined type names. The vector data type names defined in vectorDataTypes(3clc), but where n is any value other than 2, 3, 4, 8 and 16, are also reserved.

Type Description
booln A boolean vector.
halfn A 16-bit float vector.
quad, quadn A 128-bit floating-point number and vectors.
complex half, complex halfn, imaginary half, imaginary halfn Complex and imaginary 16-bit floating-point scalar and vector.

complex float, complex floatn, imaginary float, imaginary floatn Complex and imaginary 32-bit floating-point scalar and vector.

complex double, complex doublen, imaginary double, imaginary doublen Complex and imaginary 64-bit floating-point scalar and vector.

complex quad, complex quadn, imaginary quad, imaginary quadn Complex and imaginary 128-bit floating-point scalar and vector.

floatnxm An n x m matrix of single precision floating-point values stored in column-major order.
doublenxm An n x m matrix of double precision floating-point values stored in column-major order.
long double, long doublen A floating-point scalar and vector type with at long doublen least as much precision and range as a double and no more precision and range than a quad.

long long, long longn A 128-bit signed integer scalar and vector.
unsigned long long, ulong long, ulong longn A 128-bit unsigned integer scalar and vector.


OpenCL Specification[1]


macroLimits(3clc), scalarDataTypes(3clc), vectorDataTypes(3clc), otherDataTypes(3clc), abstractDataTypes(3clc), enums(3clc),


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OpenCL Specification
page 200, section 6.1.4 - Reserved Data Types
02/03/2019 The Khronos Group