> FWIW, I dimly recall a numeric library, maybe a float to string, which tested everything for verification. Took a few days to run. You can definitely test ag

> FWIW, I dimly recall a numeric library, maybe a float to string, which tested everything for verification. Took a few days to run. You can definitely test against all ~2^31 IEEE 754 binary32 values to make sure that float-to-decimal conversion is correct; that's what I've done with the Rust standard library (took 2 hours per test). I believe testing all ~2^63 binary64 values are also feasible by now, but only with dedicated hardwares. For that reason I believe the library had only tested with binary32.