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ISINF(3clc) OpenCL Manual ISINF(3clc)


isinf - Test for infinity value.

int isinf(float );

intn isinf(floatn );

int isinf(double );

longn isinf(doublen );

int isinf (half) // if half extension enabled shortn isinf (halfn) // if half extension enabled


Test for infinity value (positive or negative).


If an implementation extends this specification to support IEEE-754 flags or exceptions, then all built-in relational functions shall proceed without raising the invalid floating-point exception when one or more of the operands are NaNs.

The built-in relational functions are extended with cl_khr_fp16(3clc) to include appropriate versions of functions that take half, and half{2|3|4|8|16} as arguments and return values.

The function returns a 0 if the specified relation is false and a 1 if the specified relation is true for scalar argument types. These functions shall return a 0 if the specified relation is false and a - 1 (i.e. all bits set) if the specified relation is true for vector argument types.


OpenCL Specification[1]




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OpenCL Specification
page 264, section 6.12.6 - Relational Functions
01/14/2021 The Khronos Group