reserve.c

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/* ************************************************************************** */
/*      ____    _    _____ ____     _    _   _   _____ _  _   ____  ____      */
/*     / ___|  / \  |  ___|  _ \   / \  | \ | | |_   _| || | |  _ \/ ___|     */
/*     \___ \ / _ \ | |_  | |_) | / _ \ |  \| |   | | | || |_| | | \___ \     */
/*      ___) / ___ \|  _| |  _ < / ___ \| |\  |   | | |__   _| |_| |___) |    */
/*     |____/_/   \_|_|   |_| \_/_/   \_|_| \_|   |_|    |_| |____/|____/     */
/*                                                                            */
/* ************************************************************************** */
 
#include "o2s/deque.h"
 
#include <stdlib.h> // reallocarray

void deque_reserve(deque_t* self, size_t count)
{
    size_t room = deque_room(self);
    if (room < count)
    {
        size_t new_capacity = self->capacity + count;
        self->storage = reallocarray(self->storage, new_capacity, self->type_size);
        if (self->storage == NULL)
            new_capacity = 0;
        self->capacity = new_capacity;
    }
}