transform_reduce

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function transform_reduce<Input, Output>(x:Input[_], init:Output, op1:\(Output, Output) -> Output, op2:\(Input) -> Output) -> Output

Unary transformation and reduction.

• x: First operand.
• init: Initial value.
• op1: Reduction operator.
• op2: Transformation operator.

function transform_reduce<Input1, Input2, Output>(x:Input1[_], y:Input2[_], init:Output, op1:\(Output, Output) -> Output, op2:\(Input1, Input2) -> Output) -> Output

Binary transformation and reduction.

• x: First operand.
• y: Second operand.
• init: Initial value.
• op1: Reduction operator.
• op2: Transformation operator.

function transform_reduce<Input1, Input2, Input3, Output>(x:Input1[_], y:Input2[_], z:Input3[_], init:Output, op1:\(Output, Output) -> Output, op2:\(Input1, Input2, Input3) -> Output) -> Output

Ternary transformation and reduction.

• x: First operand.
• y: Second operand.
• z: Third operand.
• init: Initial value.
• op1: Reduction operator.
• op2: Transformation operator.