From: Richard Kreckel <kreckel@ginac.de>
Date: Wed, 25 Nov 2015 10:28:10 +0000 (+0100)
Subject: In power::expand_add(), don't reserve excess monomial sizes.
X-Git-Tag: ginac_1-6-6~4
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=2639812c0ba4e1f9620660bbba1f12bf5b865e29;hp=2639812c0ba4e1f9620660bbba1f12bf5b865e29

In power::expand_add(), don't reserve excess monomial sizes.

There is no need to reserve n terms in each of the monomials of the
result of power(+(x,y,z...;0),n): We can compute it exactly as the
number of nonzero exponents in the multinomial expansion. The good
thing is that this counting is the same for each composition of a
partition, so it can be hoisted out of the loop over compositions.
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