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David C. Lonie authored
VTK_ASSUME can be used to provide optimization hints to the compiler by specifying that certain non-obvious conditions are true. This is especially useful for fixing the number of components in an array; if an array is known to have 3 components, adding VTK_ASSUME(array->GetNumberOfComponents() == 3); can allow the compiler to perform advanced loop unrolling and vectorization in certain cases.
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