Description

The following constants are available. Their values are of type float and are accurate within the precision of a single precision floating-point number.

Constant Name Description

MAXFLOAT

Value of maximum non-infinite single-precision floating-point number.

HUGE_VALF

A positive float constant expression. HUGE_VALF evaluates to +infinity. Used as an error value returned by the built-in math functions.

INFINITY

A constant expression of type float representing positive or unsigned infinity.

NAN

A constant expression of type float representing a quiet NaN.

If double-precision is supported by the device, then the following constants are also available:

Constant Name Description

HUGE_VAL

A positive double constant expression. HUGE_VAL evaluates to +infinity. Used as an error value returned by the built-in math functions.

See Also

mathFunctions

Document Notes

For more information, see the OpenCL C Specification

This page is extracted from the OpenCL C Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2025 The Khronos Group Inc.

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