//
// This confidential and proprietary software may be used only as
// authorised by a licensing agreement from ARM Limited
// (C) COPYRIGHT 2020-2024 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.

int16_t erf_reference(int16_t x) { // input x range is -256 to + 256 inclusive
    fp64_t v = static_cast<fp64_t>(x) / static_cast<fp64_t>(64);
    v = erf(v);
    return round_to_nearest_int(32768.0 * v);
}

generate_lookup_table(&erf_table, &erf_reference);