bool elemental_vector::increase_capacity(uint min_new_capacity, bool grow_hint, uint element_size, object_mover pMover, bool nofail)
{
CRNLIB_ASSERT(m_size <= m_capacity);
#ifdef CRNLIB_PLATFORM_PC_X64
CRNLIB_ASSERT(min_new_capacity < (0x400000000ULL / element_size));
#else
CRNLIB_ASSERT(min_new_capacity < (0x7FFF0000U / element_size));
#endif
if (m_capacity >= min_new_capacity)
return true;
size_t new_capacity = min_new_capacity;
if ((grow_hint) && (!math::is_power_of_2(new_capacity)))
new_capacity = math::next_pow2(new_capacity);
CRNLIB_ASSERT(new_capacity && (new_capacity > m_capacity));
const size_t desired_size = element_size * new_capacity;
size_t actual_size;
if (!pMover)
{
void* new_p = crnlib_realloc(m_p, desired_size, &actual_size, true);
if (!new_p)
{
if (nofail)
return false;
char buf[256];
#ifdef _MSC_VER
sprintf_s(buf, sizeof(buf), "vector: crnlib_realloc() failed allocating %u bytes", (uint)desired_size);
#else
sprintf(buf, "vector: crnlib_realloc() failed allocating %u bytes", (uint)desired_size);
#endif
CRNLIB_FAIL(buf);
}
m_p = new_p;
}
else
{
void* new_p = crnlib_malloc(desired_size, &actual_size);
if (!new_p)
{
if (nofail)
return false;
char buf[256];
#ifdef _MSC_VER
sprintf_s(buf, sizeof(buf), "vector: crnlib_malloc() failed allocating %u bytes", (uint)desired_size);
#else
sprintf(buf, "vector: crnlib_malloc() failed allocating %u bytes", (uint)desired_size);
#endif
CRNLIB_FAIL(buf);
}
(*pMover)(new_p, m_p, m_size);
if (m_p)
crnlib_free(m_p);
m_p = new_p;
}
if (actual_size > desired_size)
m_capacity = static_cast<uint>(actual_size / element_size);
else
m_capacity = static_cast<uint>(new_capacity);
return true;
}
static void* realloc_func(void* p, size_t size, size_t* pActual_size, bool movable, void* pUser_data)
{
pUser_data;
return crnlib_realloc(p, size, pActual_size, movable);
}
