The first example is incomplete: it forgets to clear and then check errno and/or... | Hacker News

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		SAI_Peregrinus on Sept 10, 2020 \| parent \| context \| favorite \| on: Parsing floats in C++: benchmarking strtod vs. fro... The first example is incomplete: it forgets to clear and then check errno and/or check the returned value to +-HUGE_VAL! That'd probably slow down the strtod version a bit more.

jwilk on Sept 11, 2020 [–]

strtod() could also return 0 on underflow.

But to be fair, the C++17 example doesn't check for underflow or overflow either.

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