Le 28/01/2015 17:20, Alexandre Torres Porres a écrit :

howdy, check the attached patch.

1e+06 + 1 is not equal to 1e+06

but 1e+09 + 1 is equal to 1e+09

meaning it didn't add 1 to 1e+09! Meaning there's a limit where it stops adding 1 to something.

how's that and why?

it's a limitation of 32 bit float.
since 1 bit is used for the sign, 8 for the exponent, 23 bit are left for the significant.
this mean that you can't have more precision in the significant than 2^24 -1 (a bit less than 1.7*10^7)

cheers
c

cheers


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