example1.c

/*
 * Tulip Indicators
 * https://tulipindicators.org/
 * Copyright (c) 2010-2017 Tulip Charts LLC
 * Lewis Van Winkle (LV@tulipcharts.org)
 *
 * This file is part of Tulip Indicators.
 *
 * Tulip Indicators is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * Tulip Indicators is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Tulip Indicators.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "indicators.h"
#include <stdio.h>
#include <stdlib.h>


void print_array(const double *p, const int size) {
    int i;
    for (i = 0; i < size; ++i) {
        if (i) printf(", ");
        printf("%.1f", p[i]);
    }
    printf("\n");
}


int main()
{
    const double data_in[] = {5,8,12,11,9,8,7,10,11,13};
    const int input_length = sizeof(data_in) / sizeof(double);

    printf("We have %d bars of input data.\n", input_length);
    print_array(data_in, input_length);

    const double options[] = {3};
    printf("Our option array is: ");
    print_array(options, sizeof(options) / sizeof(double));

    const int start = ti_sma_start(options);
    printf("The start amount is: %d\n", start);

    const int output_length = input_length - start;
    double *data_out = malloc((unsigned int)output_length * sizeof(double));
    assert(data_out != 0);
    printf("The output length is: %d\n", output_length);

    const double *all_inputs[] = {data_in};
    double *all_outputs[] = {data_out};
    int error = ti_sma(input_length, all_inputs, options, all_outputs);
    assert(error == TI_OKAY);


    printf("The output data is: ");
    print_array(data_out, output_length);

    return 0;
}