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Accurate number parsing #226
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This is currently being looked at and has some patching |
Number parsing has a precise mode now, but performance has not been optimized |
What is the performance penalty roughly when setting options::IEEE754Precise? And does setting this option address the issue entirely? |
Depends on the system, but the cost of from_chars if it supports FP. I am currently working on implementing https://arxiv.org/abs/2212.06644 which should largely remove most of the cost. |
Current implementation has inaccurate number parsing.
How to Read Floating Point Numbers Accurately by William D. Clinger - a classic paper on number parsing.
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