Relational Built-In Functions

Click an item in the table below for details about that function.


Compare of x == y.


Compare of x != y.


Compare of x > y.


Compare of x >= y.


Compare of x < y.


Compare of x <= y.


Compare of (x < y) || (x > y).


Test for finite value.


Test for +ve or -ve infinity.


Test for a NaN.


Test for a normal value.


Test if arguments are ordered.


Test if arguments are unordered.


Test for sign bit.


1 if MSB in any component of x is set; else 0.


1 if MSB in all components of x is set; else 0.


Each bit of result is corresponding bit of a if corresponding bit of c is 0.


For each component of a vector type, result[i] = if MSB of c[i] is set ? b[i] : a[i] For scalar type, result = c ? b : a.


The relational and equality operators (<, <=, >, >=, !=, ==) can be used with scalar and vector built-in types and produce a scalar or vector signed integer result respectively.

The built-in relational functions can be used with built-in scalar or vector types as arguments and return a scalar vector integer result. The argment type gentype can be char, charn, uchar, ucharn, short, shortn, ushort, ushortn, int, intn, uint, uintn, long, longn, ulong, ulongn, float, and floatn. The argument type igentype refers to signed integer vector types i.e. char, charn, short, shortn, int, intn, long, and longn. The argument type ugentype refers to unsigned integer vector types i.e. uchar, ucharn, ushort, ushortn, uint, uintn, ulong, and ulongn.

The built-in relational functions are extended with cl_khr_fp64 to include appropriate versions of functions that take double, and double{2|4|8|16} as arguments and return values. They are also extended with with cl_khr_fp16 to include appropriate versions of functions that take half, and half{2|4|8|16} as arguments and return values.


OpenCL Specification

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