source: src/libcfa/containers/vector.c @ 5d28a19

#include <containers/vector> 

#include <stdlib>

//------------------------------------------------------------------------------
//Initialization
forall(otype T, otype allocator_t | allocator_c(T, allocator_t))
void ctor(vector(T, allocator_t) *const this)
{
        ctor(&this->storage);
        this->size = 0;
}

forall(otype T, otype allocator_t | allocator_c(T, allocator_t))
void dtor(vector(T, allocator_t) *const this)
{
        clear(this);
        dtor(&this->storage);
}

//------------------------------------------------------------------------------
//Modifiers
forall(otype T, otype allocator_t | allocator_c(T, allocator_t))
void push_back(vector(T, allocator_t) *const this, T value)
{
        realloc(&this->storage, this->size+1);
        data(&this->storage)[this->size] = value;
        this->size++;
}

forall(otype T, otype allocator_t | allocator_c(T, allocator_t))
void pop_back(vector(T, allocator_t) *const this)
{
        this->size--;
        DESTROY(data(&this->storage)[this->size]);
}

forall(otype T, otype allocator_t | allocator_c(T, allocator_t))
void clear(vector(T, allocator_t) *const this)
{
        for(size_t i = 0; i < this->size; i++)
        {
                DESTROY(data(&this->storage)[this->size]);
        }
        this->size = 0;
}

//------------------------------------------------------------------------------
//Allocator
forall(otype T)
void ctor(heap_allocator(T) *const this)
{
        this->storage = 0;
        this->capacity = 0;
}

forall(otype T)
void dtor(heap_allocator(T) *const this)
{
        free(this->storage);
}

forall(otype T)
inline void realloc(heap_allocator(T) *const this, size_t size)
{
        enum { GROWTH_RATE = 2 };
        if(size > this->capacity)
        {
                this->capacity = GROWTH_RATE * size;
                this->storage = (T*)realloc((void*)this->storage, this->capacity * sizeof(T));
        }
}