#include "tensorstore/index_space/dim_expression.h"
auto tensorstore::DimRange(
    DimensionIndex inclusive_start,
    std::optional<DimensionIndex> exclusive_stop = std::nullopt,
    const DimensionIndex step = 1);

Starts a DimExpression with a range of dimensions.

See DimRangeSpec for more detailed documentation.

  • DimRange(3) specifies all dimensions greater than 3.

  • DimRange(3, 6) specifies dimensions {3, 4, 5}.

  • DimRange(3, std::nullopt, 2) specifies odd dimensions greater than 3.

  • DimRange(-3) specifies the last 3 dimensions, and can be used to add 3 new trailing dimensions.

  • DimRange(1, -2) specifies dimensions 1 up to but not including the second from the last. It cannot be used to infer the final rank when adding new dimensions.

Since DimRange resolves to a variable number of dimensions, the resulting DimExpression always has a compile-time rank of dynamic_rank.