[Issue 5568] A problem with BigInt modulus

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5568



--- Comment #6 from Don <clugdbug at yahoo.com.au> 2011-02-19 06:13:57 PST ---
And the original test case is:

import std.bigint;
void main() {
    BigInt m = (BigInt(1) << (4846+4843) ) - 1;
    BigInt a = (BigInt(1) << 4846 ) - 1;
    BigInt b = (BigInt(1) << (4846*2 + 4843)) - 1;
    BigInt c = (BigInt(1) << (4846*2 + 4843*2)) - 1;
    BigInt w =  c - b + a;
    assert(w % m == 0);
}

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