search for: 5e14fc31

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2020 Nov 17
3
formatting issue with gcc 9.3.0 on Ubuntu on WSL2
...ormat.c:scientific(). The lowest two+ bytes in the fractional part of the long double (80-bit) return value of powl(10.0L, -30L), seem to be corrupted. I made a standalong program to test powl and saw no problem - it gives the same results for the fractional part as bc does. bc: A2425FF7 5E14FC31 A125... standalone: 22425FF7 5E14FC32 R: 22425FF7 5E151800 There are lots of other small numbers with the same problem: > grep(value=TRUE, "0e", vapply((1+(0:10000)/1000)*1e-15, deparse, "")) [1] "8.56000000000000e-15" "...
2020 Nov 18
2
formatting issue with gcc 9.3.0 on Ubuntu on WSL2
...e fractional part of the long double (80-bit) > > return value of powl(10.0L, -30L), seem to be corrupted. I made a > > standalong program to test powl and saw no problem - it gives the > > same results for the fractional part as bc does. > > > > bc: A2425FF7 5E14FC31 A125... > > standalone: 22425FF7 5E14FC32 > > R: 22425FF7 5E151800 > > > > There are lots of other small numbers with the same problem: > > > > > > > grep(value=TRUE, "0e", > > vapply((1+(0:10000)/1...
2020 Nov 18
0
formatting issue with gcc 9.3.0 on Ubuntu on WSL2
...; lowest two+ bytes in the fractional part of the long double (80-bit) > return value of powl(10.0L, -30L), seem to be corrupted. I made a > standalong program to test powl and saw no problem - it gives the > same results for the fractional part as bc does. > > bc: A2425FF7 5E14FC31 A125... > standalone: 22425FF7 5E14FC32 > R: 22425FF7 5E151800 > > There are lots of other small numbers with the same problem: > > > > grep(value=TRUE, "0e", > vapply((1+(0:10000)/1000)*1e-15, deparse, "")) >...