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Vector example

See also vector documentation.

//SPDX-License-Identifier: LGPL-2.0-or-later
/*

  Copyright (C) 2020 Richard Palethorpe <richiejp@f-m.fm>
  Copyright (C) 2020 Cyril Hrubis <metan@ucw.cz>

*/

#include <stdio.h>
#include <utils/gp_vec.h>

static void print_int_vec(int *payload)
{
        size_t i;
        gp_vec *vec = GP_VEC(payload);

        printf("gp_vec { .unit = %zu, .capacity = %zu, .length = %zu, .payload = [\n ",
               vec->unit, vec->capacity, vec->length);

        for (i = 0; i < vec->length; i++)
                printf("\t%zu\t= %d\n", i, payload[i]);

        if (vec->length < vec->capacity)
                printf("\t... +%zu unused capacity\n", vec->capacity - vec->length);

        printf("]}\n");
}

int main(void)
{
        size_t i;
        int *ints = gp_vec_new(10, sizeof(int));
        char **strs;

        for (i = 0; i < gp_vec_len(ints); i++)
                ints[i] = i + 1;

        printf("Initial range (1,10): ");
        print_int_vec(ints);

        ints = gp_vec_ins(ints, 0, 1);
        ints[0] = 0;

        printf("\nInsert 0: ");
        print_int_vec(ints);

        ints = GP_VEC_PUSH(ints, 11);

        printf("\nPush 11: ");
        print_int_vec(ints);

        ints = gp_vec_ins(ints, 4, 1);
        ints[4] = -1;

        printf("\nInsert -1 at 4: ");
        print_int_vec(ints);

        ints = gp_vec_ins(ints, 5, 3);

        printf("\nInsert 3 of 0 at 5: ");
        print_int_vec(ints);

        ints = gp_vec_del(ints, 5, 3);
        printf("\nDelete 3 of 0 at 5: ");
        print_int_vec(ints);

        ints = gp_vec_del(ints, 4, 1);
        printf("\nDelete -1 at 4: ");
        print_int_vec(ints);

        ints = gp_vec_del(ints, 11, 1);
        printf("\nDelete 11 at 11: ");
        print_int_vec(ints);

        ints = gp_vec_del(ints, 0, 1);
        printf("\nDelete 0 at 0: ");
        print_int_vec(ints);

        gp_vec_free(ints);

        strs = gp_vec_new(10, sizeof(char*));

        for (i = 0; i < gp_vec_len(strs); i++) {
                strs[i] = gp_vec_new(10, sizeof(char));
                snprintf(strs[i], gp_vec_len(strs[i]), "Line %zu", i);
        }

        printf("\nVec of string vecs: \n");
        for (i = 0; i < gp_vec_len(strs); i++)
                printf("%s\n", strs[i]);

        for (i = 0; i < gp_vec_len(strs); i++)
                gp_vec_free(strs[i]);

        gp_vec_free(strs);

        return 0;
}