Fix mul::info(info_flags::nonnegative).
authorVladimir Kisil <kisilv@maths.leeds.ac.uk>
Wed, 22 Apr 2015 19:52:15 +0000 (21:52 +0200)
committerRichard Kreckel <kreckel@ginac.de>
Wed, 22 Apr 2015 19:52:15 +0000 (21:52 +0200)
commit62168ea93d23c81172ad07f9ec2f7044d1570681
treee01b6a485d9f321724a6da8f4ad25cbdc89cc058
parentc814fb2991fc9d44c7466da5bbf20e58c0f4238f
Fix mul::info(info_flags::nonnegative).

Due to an obvious Boolean inversion, this function call always
returned the wrong answer.
ginac/mul.cpp