> When you say "no python temps" I guess you mean, no temporary > *variables*? If I understand correctly, this allocates a temporary > boolean array to hold the result of "a<0".
Indeed, hence my precising "no *python* temps". There still be a tmp created at one point or another (if I'm not mistaken) > This is an unfortunate limitation that comes from the fact that we > can't override the behaviour of python's logical operations. a<b<c > does the right thing for python scalars, but it does it by being > expanded to (approximately) "a<b and b<c", and "and" doesn't do the > right thing for arrays. Note that in addition of the bitwise operators, you can use the "logical_" functions. OK, you'll still end up w/ temporaries, but I wonder whether there couldn't be some tricks to bypass that... _______________________________________________ Numpy-discussion mailing list [email protected] http://projects.scipy.org/mailman/listinfo/numpy-discussion
