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echo: os2prog
to: Chris Mcbrien
from: Stephen Lindholm
date: 1994-10-10 17:51:48
subject: C/Set++

Chris Mcbrien le escribe a All:

CM> main()
CM> {
CM>         float temp=26.4;
CM> }

CM> Then debug it, and tell me what you see as the value of
CM> temp, after the assignment?

CM> My system tells me the value is 2.639996E+01.  Now that's
CM> not a huge difference, I admit, but it's enough to really
CM> screw up my program.

Familiar with epsilon? Its basically how much the compiler can screw up and
not have to be responsible for it. Since float is such a small number,
episilon is very large for that. Use doubles or temp reals, the latter
preferred for work with an FPU for obvious reasons.

loSmaH cha'

--- timEd-B9

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