feat: DH-21391: Add unit test that highlights edge cases of float vs double parsing#303
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kosak merged 4 commits intodeephaven:mainfrom Jan 13, 2026
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This is a subtle topic, but there are a a few edge cases where users will get slightly different floating point answers than expected when using our library. These all boil down to the same reasons:
There are cases where the Java expression
Float.parse(s)can differ from(float)Double.parse(s). We use (the equivalent of) the latter everywhere for type inferencing reasons and because our double parser is a third-party library that is very fast.We are already aware of this, and we provide
FloatStrictParserfor users that want strict behavior that is exactlyFloat.parse(s).This issue adds a unit test that exercises
FloatStrictParserand highlights its differences.