main()
{
float a=8.8;
double b=8.8;
if(a==b)
printf("Equal");
else
printf("not equal");
getch();
}
what is the output?
with reason
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Answer Posted / rakesh
It will print "not equal". Reason is the difference in
precision of the numbers. ie numbers like 8.8 or 8.1 can't
be stored with complete precision in binary sysetm since
it's mantissa part will not end but continues with a
series. So value calculated for single precision(float)
number will be slightly different from the value calculated
for double precision (double) number. To verify this use
gcc and gdb in linux.
If you try with numbers 8.25, 8.5 or 8.75 the program will
print "equal" since the mantissa part ends with in the
precision.
I think this has nothing to do with compiler version or
inabilty of comparision.
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