[Python-Dev] Floor division

Raymond Hettinger raymond.hettinger at verizon.net
Sat Jan 20 01:28:17 CET 2007

I bumped into an oddity today:

    6.0 // 0.001 != math.floor(6.0 / 0.001)

In looking at Objects/floatobject.c, I was surprised to find that 
float_floor_division() is implemented in terms of float_divmod().  Does anyone 
know why it takes such a circuitous path?  I had expected something simpler and 

     return PyFloat_FromDouble(floor(a/b));


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