/*
 * Copyright (c) 2020, Dive into Systems, LLC (https://diveintosystems.org/)
 * Program with a segfault
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int initfunc(int *array, int len) {

    int i;

    for (i=1; i <= len; i++) {
        array[i] = i;
    }
    return 0;
}

int func(int *array1, int len, int max) {

    int i;

    max = array1[0];
    for (i=1; i <= len; i++) {
        if (max < array1[i]) {
            max = array1[i];
        }
    }
    return 0;
}

int main(int argc, char *argv[]) {

    int *arr = NULL;
    int max = 6;

    if (initfunc(arr, 100) != 0 ) {
        printf("init error\n");
        exit(1);
    }

    if ( func(arr, 100, max) != 0 ) {
        printf("func error\n");
        exit(1);
    }
    printf("max value in the array is %d\n", max);
    exit(0);
}