Fix StringExtensions.SplitFloats incorrect float parsing#112897
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raulsntos
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Nov 18, 2025
raulsntos
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Nice catch, thanks! I tested the changes and it works as expected.
You'll need to squash the commits before this PR can be merged. The contributing documentation contains information about squashing in case you need it.
Feel free to reach out in the development chat if you need help.
the current code assumes that float.Parse behaves the same as the internal C++ code, however without using "end" as part of the span, it will parse from index 0 to the end of the string, ignoring commas. for example, this causes it to parse "0,5,0" with divisor "," as [50, 50, 0], as the float.Parse method ignores commas in floats. if another divisor is used, it throws a System.FormatException due to containing invalid characters, as it fails to account for the position of the divisor for the span.
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the current code assumes that float.Parse behaves the same as the internal C++ code, however without using "end" as part of the span, it will parse from index 0 to the end of the string, ignoring commas. for example, this causes it to parse "0,5,0" with divisor "," as [50, 50, 0], as the float.Parse method ignores commas in floats.
if another divisor is used, it throws a System.FormatException due to containing invalid characters, as it fails to account for the position of the divisor for the span.