import mir.format;
auto str = "-34010447314490204552169750449563978034784726557588085989975288830070948234680";
auto integer = BigInt!4(str);
auto buffer = stringBuf;
buffer << integer;
assert(buffer.data == str);

1 import mir.test;
2 import mir.bignum.fixed;
3 import mir.bignum.low_level_view;
4 
5 {
6     auto a = BigInt!4.fromHexString("c39b18a9f06fd8e962d99935cea0707f79a222050aaeaaaed17feb7aa76999d7");
7     auto b = UInt!128.fromHexString("f79a222050aaeaaa417fa25a2ac93291");
8 
9     // ca3d7e25aebe687b 168dcef32d0bb2f0
10     auto c = BigInt!4.fromHexString("bf4c87424431d21563f23b1fc00d75ac");
11     a %= b;
12     a.should == c;
13     a = BigInt!4.fromHexString("c39b18a9f06fd8e962d99935cea0707f79a222050aaeaaaed17feb7aa76999d7");
14     a /= b;
15     assert(a == BigInt!4.fromHexString("ca3d7e25aebe687b7cc1b250b44690fb"));
16 }
17 
18 {
19     auto a = BigInt!4.fromHexString("7fff000080000000000000000000");
20     auto b = UInt!128.fromHexString("80000000000000000001");
21 
22     auto c = BigInt!4.fromHexString("fffe0000");
23     a /= b;
24     a.should == c;
25 
26     a = BigInt!4.fromHexString("7fff000080000000000000000000");
27     assert((a %= b) == BigInt!4.fromHexString("7fffffffffff00020000"));
28 }
29 
30 {
31     auto a = BigInt!16.fromHexString("76d053cdcc87ec8c9455c375d6a08c799fad73cf07415e70af5dfacaff4bd306647a7cceb98839cce89ae65900938821564fd2af3c9d881c172264bb17e3530ce79b938d5eb7ffec558be43ab5b684978417c5053fb8df63fc65c9efd8b2e86469c53259509eb597f81647930f24ef05a79bfecf04e5ec52414c6a3f7481d533");
32     auto b = UInt!128.fromHexString("9c5c1aa6ad7ad18065a3a74598e27bee");
33 
34     assert((a /= b) == BigInt!16.fromHexString("c2871f2b07522bda1e63de12850d2208bb242c716b5739d6744ee1d9c937b8d765d3742e18785d08c2405e5c83f3c875d5726d09dfaee29e813675a4f91bfee01e8cbbbca9588325d54cf2a625faffde4d8709e0517f786f609d8ce6997e0e71d2f976ae169b0c4be7a7dba3135af96c"));
35     a = BigInt!16.fromHexString("76d053cdcc87ec8c9455c375d6a08c799fad73cf07415e70af5dfacaff4bd306647a7cceb98839cce89ae65900938821564fd2af3c9d881c172264bb17e3530ce79b938d5eb7ffec558be43ab5b684978417c5053fb8df63fc65c9efd8b2e86469c53259509eb597f81647930f24ef05a79bfecf04e5ec52414c6a3f7481d533");
36     assert((a %= b) == BigInt!16.fromHexString("85d81587a8b62af1874315d26ebf0ecb"));
37 }
38 
39 {
40     auto a = BigInt!4.fromHexString("DEADBEEF");
41     auto b = UInt!256.fromHexString("18aeff9fa4aace484a9f8f9002cdf38fa6e53fc0f6c035051dc86931c1c08316");
42 
43     assert((a /= b) == 0);
44     a = BigInt!4.fromHexString("DEADBEEF");
45     assert((a %= b) == 0xDEADBEEF);
46 }
47 
48 void test(const long av, const long bv)
49 {
50     auto a = BigInt!4(av);
51     const b = BigInt!4(bv);
52     a /= b;
53     assert(a == av / bv);
54     a = BigInt!4(av);
55     a %= b;
56     assert(a == av % bv);
57 }
58 
59 {
60     auto av = 0xDEADBEEF;
61     auto bv = 0xDEAD;
62     test(+av, +bv);
63     // test(+av, -bv);
64     // test(-av, +bv);
65     // test(+av, +bv);
66 }

import mir.bignum.fixed;
import mir.bignum.low_level_view;

auto a = BigInt!4.fromHexString("4b313b23aa560e1b0985f89cbe6df5460860e39a64ba92b4abdd3ee77e4e05b8");
auto b = BigInt!4.fromHexString("c39b18a9f06fd8e962d99935cea0707f79a222050aaeaaaed17feb7aa76999d7");
auto c = BigInt!4.fromHexString("7869dd864619cace5953a09910327b3971413e6aa5f417fa25a2ac93291b941f");
c.sign = true;
assert(a != b);
assert(a < b);
a -= b;
assert(a.sign);
assert(a == c);
a -= a;
assert(!a.sign);
assert(!a.length);

auto d = BigInt!4.fromHexString("0de1a911c6dc8f90a7169a148e65d22cf34f6a8254ae26362b064f26ac44218a");
assert((b *= 0x7869dd86) == 0x5c019770);
assert(b == d);

d = BigInt!4.fromHexString("856eeb23e68cc73f2a517448862cdc97e83f9dfa23768296724bf00fda7df32a");
auto o = b *= UInt!128.fromHexString("f79a222050aaeaaa417fa25a2ac93291");
assert(o == UInt!128.fromHexString("d6d15b99499b73e68c3331eb0f7bf16"));
assert(b == d);

d = BigInt!4.fromHexString("d"); // initial value
d.mulPow5(60);
c = BigInt!4.fromHexString("81704fcef32d3bd8117effd5c4389285b05d");
assert(d == c);

d >>= 80;
c = BigInt!4.fromHexString("81704fcef32d3bd8");
assert(d == c);

c = BigInt!4.fromHexString("c39b18a9f06fd8e962d99935cea0707f79a222050aaeaaaed17feb7aa76999d7");
d = BigInt!4.fromHexString("9935cea0707f79a222050aaeaaaed17feb7aa76999d700000000000000000000");
c <<= 80;
assert(d == c);
c >>= 80;
c <<= 84;
d <<= 4;
assert(d == c);
assert(c != b);
b.sign = true;
assert(!c.copyFrom(b.coefficients, b.sign));
assert(c == b);
b >>= 18;
auto bView = cast(BigIntView!ushort)b.view;
assert(!c.copyFrom(bView.coefficients[0 .. $ - 1], bView.sign));
assert(c == b);