//
// This confidential and proprietary software may be used only as
// authorised by a licensing agreement from ARM Limited
// (C) COPYRIGHT 2020-2021 ARM Limited
// ALL RIGHTS RESERVED
// The entire notice above must be reproduced on all authorised
// copies and copies may only be made to the extent permitted
// by a licensing agreement from ARM Limited.

=== Elementwise Ternary Operators

==== SELECT

Elementwise select of the output based on a condition.

include::{generated}/operators/SELECT.adoc[]

[source,c++]
----
ERROR_IF(shape != broadcast_shape(broadcast_shape(shape1, shape2), shape3));
for_each(index in shape) {
    dim_t index1 = apply_broadcast(shape, shape1, index);
    dim_t index2 = apply_broadcast(shape, shape2, index);
    dim_t index3 = apply_broadcast(shape, shape3, index);
    bool_t value1 = tensor_read<bool_t>(input1, shape1, index1);
    in_out_t value2 = tensor_read<in_out_t>(input2, shape2, index2);
    in_out_t value3 = tensor_read<in_out_t>(input3, shape3, index3);
    in_out_t result;
    if (value1) {
         result = value2;
    } else {
         result = value3;
    }
    tensor_write<in_out_t>(output, shape, index, result);
}
----
