/// \brief Reallocates internal block to hold at least \p newSize bytes.
///
/// Additional memory may be allocated, but for efficiency it is a very
/// good idea to call reserve before doing byte-by-byte edit operations.
/// The block size as returned by size() is not altered. reserve will not
/// reduce allocated memory. If you think you are wasting space, call
/// deallocate and start over. To avoid wasting space, use the block for
/// only one purpose, and try to get that purpose to use similar amounts
/// of memory on each iteration.
///
void memblock::reserve (size_type newSize, bool bExact)
{
if ((newSize += minimumFreeCapacity()) <= m_Capacity)
return;
void* oldBlock (is_linked() ? NULL : data());
if (!bExact)
newSize = Align (newSize, c_PageSize);
pointer newBlock = (pointer) realloc (oldBlock, newSize);
if (!newBlock)
__THROW_BAD_ALLOC(newSize);
if (!oldBlock && cdata())
copy_n (cdata(), min (size() + 1, newSize), newBlock);
link (newBlock, size());
m_Capacity = newSize;
}
/// \brief Reallocates internal block to hold at least \p newSize bytes.
///
/// Additional memory may be allocated, but for efficiency it is a very
/// good idea to call reserve before doing byte-by-byte edit operations.
/// The block size as returned by size() is not altered. reserve will not
/// reduce allocated memory. If you think you are wasting space, call
/// deallocate and start over. To avoid wasting space, use the block for
/// only one purpose, and try to get that purpose to use similar amounts
/// of memory on each iteration.
///
void memblock::reserve (size_type newSize, bool bExact)
{
if ((newSize += minimumFreeCapacity()) <= m_Capacity)
return;
pointer oldBlock (is_linked() ? NULL : data());
const size_t alignedSize (Align (newSize, 64));
if (!bExact)
newSize = alignedSize;
pointer newBlock = (pointer) realloc (oldBlock, newSize);
if (!newBlock)
USTL_THROW(bad_alloc (newSize));
if (!oldBlock & (cdata() != NULL))
copy_n (cdata(), min (size() + 1, newSize), newBlock);
link (newBlock, size());
m_Capacity = newSize;
}
/// \brief Reallocates internal block to hold at least \p newSize bytes.
///
/// Additional memory may be allocated, but for efficiency it is a very
/// good idea to call reserve before doing byte-by-byte edit operations.
/// The block size as returned by size() is not altered. reserve will not
/// reduce allocated memory. If you think you are wasting space, call
/// deallocate and start over. To avoid wasting space, use the block for
/// only one purpose, and try to get that purpose to use similar amounts
/// of memory on each iteration.
///
void memblock::reserve (size_type newSize, bool bExact)
{
if ((newSize += minimumFreeCapacity()) <= m_Capacity)
return;
void* oldBlock (is_linked() ? NULL : data());
if (!bExact)
newSize = Align (newSize, c_PageSize);
pointer newBlock = (pointer) realloc (oldBlock, newSize);
if (!newBlock)
#if PLATFORM_ANDROID
printf("bad_alloc\n");
#else
throw bad_alloc (newSize);
#endif
if (!oldBlock && cdata())
copy_n (cdata(), min (size() + 1, newSize), newBlock);
link (newBlock, size());
m_Capacity = newSize;
}
/// resizes the block to \p newSize bytes, reallocating if necessary.
void memblock::resize (size_type newSize, bool bExact)
{
if (m_Capacity < newSize + minimumFreeCapacity())
reserve (newSize, bExact);
memlink::resize (newSize);
}
