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Rémy Oudompheng authored
The algorithm is the same as in the double-conversion library which also implements Florian Loitsch's fast printing algorithm. It uses extended floats with a 64-bit mantissa, but cannot give an answer for all cases. old ns/op new ns/op speedup BenchmarkAtof64Decimal 332 322 1.0x BenchmarkAtof64Float 385 373 1.0x BenchmarkAtof64FloatExp 9777 419 23.3x BenchmarkAtof64Big 3934 691 5.7x BenchmarkAtof64RandomBits 34060 899 37.9x BenchmarkAtof64RandomFloats 1329 680 2.0x See F. Loitsch, ``Printing Floating-Point Numbers Quickly and Accurately with Integers'', Proceedings of the ACM, 2010. R=ality, rsc CC=golang-dev, remy https://golang.org/cl/54940682368b003
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