ptx-float-env? ( object -- ? )

Vocabulary

cuda.ptx

Inputs and outputs

object	an object
?	a boolean

Word description

Tests if the object is an instance of the ptx-float-env class.

Definition

USING: classes.tuple.private kernel math.private slots.private ;

IN: cuda.ptx

: ptx-float-env? ( object -- ? )
    dup tuple? [
        layout-of
        dup
        dup
        1
        slot
        15
        fixnum>=
        [
            15
            slot
            dup
            \ sub
            eq?
            [ drop t ]
            [
                dup \ mul eq?
                [ drop t ] [
                    dup \ mad eq?
                    [ drop t ]
                    [ dup \ fma eq? ~quotation~ ~curried~ if ]
                    if
                ] if
            ]
            if
        ]
        [ drop f ]
        if
        [ drop t ]
        [
            dup
            1
            slot
            13
            fixnum>=
            [
                13
                slot
                dup
                \ sqrt
                eq?
                [ drop t ]
                [
                    dup \ sin eq?
                    [ drop t ] [
                        dup \ rsqrt eq?
                        ~quotation~ ~quotation~ if
                    ] if
                ]
                if
            ]
            [ drop f ]
            if
        ]
        if
    ] [ drop f ] if ;