main.c

#include <stdio.h>
#include "hello_world.h"

int main(int argc, const char *argv[])
{
    int size;
    uint8_t workspace[64];
    uint8_t encoded[16];
    struct hello_world_foo_t *foo_p;

    /* Encode. */
    foo_p = hello_world_foo_new(&workspace[0], sizeof(workspace));

    if (foo_p == NULL) {
        return (1);
    }

    foo_p->bar = 78;
    size = hello_world_foo_encode(foo_p, &encoded[0], sizeof(encoded));

    if (size < 0) {
        return (2);
    }

    printf("Successfully encoded Foo into %d bytes.\n", size);

    /* Decode. */
    foo_p = hello_world_foo_new(&workspace[0], sizeof(workspace));

    if (foo_p == NULL) {
        return (3);
    }

    size = hello_world_foo_decode(foo_p, &encoded[0], size);

    if (size < 0) {
        return (4);
    }

    printf("Successfully decoded %d bytes into Foo.\n", size);
    printf("Foo.bar: %d\n", foo_p->bar);

    return (0);
}