signbit - Test for sign bit.

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       The built-in function signbit tests for sign bit. The scalar version of the function returns a 1 if the
       sign bit in the float is set else returns 0. The vector version of the function returns the following for
       each component in floatn: -1 (i.e. all bits set) if the sign bit in the float is set else returns 0.

       signbit - Test for sign bit.

       intsignbit(float);intnsignbit(floatn);intsignbit(double);longnsignbit(doublen);intsignbit (half)      // if half extension enabled

       shortnsignbit (halfn)      // if half extension enabled

        1. OpenCL Specification
           page 264, section 6.12.6 - Relational Functions

The Khronos Group                                  11/18/2024                                      SIGNBIT(3clc)

relationalFunctions(3clc)

OpenCLSpecification[1]