isnotequal

Compare of `x` != `y`.

 ``` int isnotequal (``` float x, float y`)`
 ``` intn isnotequal (``` float`n` x, float`n` y`)`
 int `isnotequal` (double `x`, double `y`) // if double extension enabled long`n` `isnotequal` (double`n` `x`, double`n` `y`) // if double extension enabled
 int `isnotequal` (half `x`, half `y`) // if half extension enabled short`n` `isnotequal` (half`n` `x`, half`n` `y`) // if half extension enabled

Description

Returns the component-wise compare of `x` != `y`.

Notes

The relational and equality operators (<, <=, >, >=, !=, ==) can be used with halfn vector types and shall produce a vector short`n` result.

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 or vector integer result. If an implementation extends this specification to support IEEE-754 flags or exceptions, then all built-in Relational 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_fp64 to include appropriate versions of functions that take double, and double{2|3|4|8|16} as arguments and return values. They are also extended with cl_khr_fp16 to include appropriate versions of functions that take half, and half{2|3|4|8|16} as arguments and return values. The relational and equality operators (<, <=, >, >=, !=, ==) can be used with double`n` vector types and shall produce a vector long`n` result.

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.

The relational functions `isequal`, `isgreater`, `isgreaterequal`, `isless`, `islessequal`, and `islessgreater` always return 0 if either argument is not a number (NaN). `isnotequal` returns 1 if one or both arguments are not a number (NaN) and the argument type is a scalar and returns -1 if one or both arguments are not a number (NaN) and the argument type is a vector.

Also see

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