create.c

Different ways of managing vector's lifetime.

Author

Evgeni Semenov

#include "vector.h"
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
 
void default_create(void);
void explicit_opts_create(void);
void extended_header(void);
void cloning(void);
 
int main(void)
{
    default_create();
    explicit_opts_create();
    extended_header();
    cloning();
 
    return 0;
}
 
void default_create(void)
{
    vector_t *vector = vector_create(.element_size = sizeof(int));
 
    if (!vector)
    {
        perror("vector_create");
        abort();
    }
 
    // ...
 
    vector_destroy(vector);
}
 
void explicit_opts_create(void)
{
    vector_t *vector = vector_create (
        .element_size = sizeof(float),
        .initial_cap = 100
    );
 
    assert(vector && "Buy more RAM!");
 
    // ...
 
    vector_destroy(vector);
}
 
void extended_header(void)
{
    typedef struct
    {
        size_t meta;
        // ...
        // ...
        // ...
    }
    ext_t;
 
    vector_t *vector = vector_create (
        .ext_header_size = sizeof(ext_t),
        .element_size = sizeof(long)
    );
 
    // ...
 
    ext_t *header = vector_get_ext_header(vector);
    *header = (ext_t) {0};
 
    // ...
 
    vector_destroy(vector);
}
 
void cloning(void)
{
    vector_opts_t opts = {.element_size = sizeof(int)};
    vector_t *vector = vector_create_(&opts);
 
    vector_t *clone = vector_clone(vector);
 
    vector_destroy(vector);
    vector_destroy(clone);
}