Refactor print to support arbitrary tensor dimensions

[tmartin-gh]

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Greptile Summary

This PR replaces the hard-coded rank-3 and rank-4 print loops in InternalPrint with three generic recursive template helpers (PrintDefaultSlices, PrintMlabCat, PrintPythonRecursive) and removes the MATX_STATIC_ASSERT(Op::Rank() <= 4, …) gate, so all three print formats now work for any tensor rank ≥ 3.

• include/matx/core/print.h: Adds PrintIndexArray, GetPrintExtents, and three format-specific recursive helpers; the else branch in InternalPrint dispatches to them for rank ≥ 3 while leaving the dedicated 0-D, 1-D, and 2-D paths untouched.
• test/00_io/PrintTests.cu: Adds DefaultTest5D, MlabTest5D, and PythonTest5D with exact string comparisons, verifying all three format paths for a rank-5 tensor.
• test/00_operators/print_test.cu / examples/print_styles.cu: Smoke-test and example usage extended to a 5-D tensor in all three formats.

Confidence Score: 5/5

Safe to merge — the refactor is self-contained to the print subsystem, all three format paths are verified by exact-string tests for the new 5-D case, and the 3-D/4-D test suite continues to validate backward-compatible output.

The generic recursive helpers produce output that is character-for-character identical to the removed hand-rolled loops for ranks 3 and 4, as confirmed by the existing exact-match tests. The new helpers extend cleanly to rank 5+, covered by three new exact-output tests. No incorrect indexing, off-by-one, or dangling-reference issues were found during detailed tracing of the template recursion and indentation logic.

No files require special attention.

Important Files Changed

Filename	Overview
include/matx/core/print.h	Core refactor: removes rank <= 4 ceiling, replaces hand-rolled 3D/4D loops with generic recursive helpers (PrintDefaultSlices, PrintMlabCat, PrintPythonRecursive) that work for any rank >= 3.
test/00_io/PrintTests.cu	Adds DefaultTest5D, MlabTest5D, and PythonTest5D tests with exact string comparisons for a reshaped {2,2,1,2,2} tensor, exercising all three format paths of the new generic helpers.
test/00_operators/print_test.cu	Smoke-tests a 5D tensor with all three format types using non-zero dim bounds; no output assertion but verifies no crash/compile failure for rank > 4.
examples/print_styles.cu	Adds a 5D reshape A5 and prints it in all three formats to demonstrate the new capability; straightforward example extension.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["InternalPrint"] --> B{sizeof Args}
    B -->|0| C["PrintVal scalar"]
    B -->|1| D["1-D loop"]
    B -->|2| E["2-D loop"]
    B -->|3+| F["GetPrintExtents"]
    F --> G{PRINT_FORMAT_TYPE}
    G -->|DEFAULT| H["PrintDefaultSlices"]
    G -->|MLAB| I["PrintMlabCat"]
    G -->|PYTHON| J["PrintPythonRecursive"]

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[tmartin-gh]

/build

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Coverage is 93.593% — tmartin-gh:tm/print_refactor into NVIDIA:main. No base build found for NVIDIA:main.