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selfshadow
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Jan 20, 2026
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The
safe_acosmacro is unused because theclampthat it performs is inlined into the code. If a clampedacoswere done in multiple places it might make sense to keep the macro (potentially changing it to a function and updating it to usefsuffixes on the float literals so it can be compiled as C++ without type mismatches), however it's only done in once place.