thunderbrewhq/squall
1
0
Fork 0
mirror of https://github.com/thunderbrewhq/squall.git synced 2025-12-12 02:22:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

feat(big): add Div

Browse source
This commit is contained in:
fallenoak 2023-02-01 23:27:32 -06:00
parent 24c6a5134c
commit 4d3651134c
No known key found for this signature in database
GPG key ID: 7628F8E61AEA070D
3 changed files with 133 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

114
test/Big.cpp
View file

@ -147,6 +147,120 @@ TEST_CASE("Compare", "[big]") {
}
}
TEST_CASE("Div", "[big]") {
SECTION("divides 2 by 1") {
BigData* a;
SBigNew(&a);
uint32_t b;
BigData* c;
SBigNew(&c);
SBigFromUnsigned(c, 2);
uint64_t d = 1;
Div(a->Primary(), &b, c->Primary(), d);
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 2);
CHECK(b == 0);
SBigDel(a);
SBigDel(c);
}
SECTION("divides 5 by 2") {
BigData* a;
SBigNew(&a);
uint32_t b;
BigData* c;
SBigNew(&c);
SBigFromUnsigned(c, 5);
uint64_t d = 2;
Div(a->Primary(), &b, c->Primary(), d);
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 2);
CHECK(b == 1);
SBigDel(a);
SBigDel(c);
}
SECTION("divides 7 by 4") {
BigData* a;
SBigNew(&a);
uint32_t b;
BigData* c;
SBigNew(&c);
SBigFromUnsigned(c, 7);
uint64_t d = 4;
Div(a->Primary(), &b, c->Primary(), d);
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 1);
CHECK(b == 3);
SBigDel(a);
SBigDel(c);
}
SECTION("divides 0x9999444488885555 by 0x2222") {
BigData* a;
SBigNew(&a);
uint32_t b;
BigData* c;
SBigNew(&c);
uint64_t c_ = 0x9999444488885555;
SBigFromBinary(c, reinterpret_cast<uint8_t*>(&c_), sizeof(c_));
uint64_t d = 0x2222;
Div(a->Primary(), &b, c->Primary(), d);
CHECK(a->Primary().Count() == 2);
CHECK(a->Primary()[0] == 0x00040002);
CHECK(a->Primary()[1] == 0x48002);
CHECK(b == 0x1111);
SBigDel(a);
SBigDel(c);
}
SECTION("divides 0x9999444488885555 by 0xFFFFFFFF") {
BigData* a;
SBigNew(&a);
uint32_t b;
BigData* c;
SBigNew(&c);
uint64_t c_ = 0x9999444488885555;
SBigFromBinary(c, reinterpret_cast<uint8_t*>(&c_), sizeof(c_));
uint64_t d = 0xFFFFFFFF;
Div(a->Primary(), &b, c->Primary(), d);
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 0x99994445);
CHECK(b == 0x2221999A);
SBigDel(a);
SBigDel(c);
}
}
TEST_CASE("ExtractLowPart", "[big]") {
SECTION("extracts low part of 0") {