[GiNaC-devel] [SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-471-g2639812

[Richard B. Kreckel]

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- Log -----------------------------------------------------------------
commit 2639812c0ba4e1f9620660bbba1f12bf5b865e29
Author: Richard Kreckel <kreckel at ginac.de>
Date:   Wed Nov 25 11:28:10 2015 +0100

    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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Summary of changes:
 ginac/power.cpp | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)


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GiNaC -- a C++ library for symbolic computations