getters.c

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/* ************************************************************************** */
/*      ____    _    _____ ____     _    _   _   _____ _  _   ____  ____      */
/*     / ___|  / \  |  ___|  _ \   / \  | \ | | |_   _| || | |  _ \/ ___|     */
/*     \___ \ / _ \ | |_  | |_) | / _ \ |  \| |   | | | || |_| | | \___ \     */
/*      ___) / ___ \|  _| |  _ < / ___ \| |\  |   | | |__   _| |_| |___) |    */
/*     |____/_/   \_|_|   |_| \_/_/   \_|_| \_|   |_|    |_| |____/|____/     */
/*                                                                            */
/* ************************************************************************** */
 
#include "private.h"
 
#include "o2s/array.h"

void* array_end(const array_t* self)
{
    if (self->capacity == 0)
        return NULL;
    return (self->start + array_offset(self, self->count));
}

void* array_first(const array_t* self)
{
    return array_get(self, 0);
}

void* array_last(const array_t* self)
{
    if (array_is_empty(self))
        return NULL;
    return array_get(self, self->count - 1);
}

void* array_get(const array_t* self, size_t index)
{
    if (index >= self->count)
        return NULL;
    return self->start + array_offset(self, index);
}

bool array_is_empty(const array_t* self)
{
    return self->count == 0;
}

size_t array_count(const array_t* self)
{
    return self->count;
}