Method MemoryUtil.ReAlloc

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Overload

Reallocates a memory block to make it bigger or smaller.

public static void ReAlloc<T>(ref T* mem, nint count, bool zeroInit = false) where T : unmanaged

Parameters

mem  (T*) Input: old memory address; if null, allocates new memory like MemoryUtil.Alloc<T>. Output: new memory address. Unchanged if exception.

count  (nint) New count of elements of type T.

zeroInit  (bool) When size is growing, set all added bytes = 0.

Exceptions

OutOfMemoryException Failed. Probably count is too big.

Type Parameters

T

Remarks

Calls API HeapReAlloc or HeapAlloc. Preserves data in Math.Min(oldCount, newCount) elements of old memory (copies from old memory if need). The memory is unmanaged and will not be freed automatically. Always call MemoryUtil.Free when done. Call ReAlloc or MemoryUtil.FreeAlloc<T> if need to resize.