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feat(big): add SBigShl

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fallenoak 2023-02-03 16:20:07 -06:00
parent 60edadfe06
commit 25c2ad06f1
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5 changed files with 212 additions and 0 deletions
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181
test/Big.cpp
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@ -855,6 +855,27 @@ TEST_CASE("SBigMul", "[big]") {
}
}
TEST_CASE("SBigShl", "[big]") {
SECTION("shifts 256 left 7 bits") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
SBigFromUnsigned(b, 256);
SBigShl(a, b, 7);
a->Primary().Trim();
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 32768);
SBigDel(a);
SBigDel(b);
}
}
TEST_CASE("SBigShr", "[big]") {
SECTION("shifts 256 right 7 bits") {
BigData* a;
@ -1004,6 +1025,166 @@ TEST_CASE("SetZero", "[big]") {
}
}
TEST_CASE("Shl", "[big]") {
SECTION("shifts 0 left 1 bit") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
SBigFromUnsigned(b, 0);
Shl(a->Primary(), b->Primary(), 1);
a->Primary().Trim();
CHECK(a->Primary().Count() == 0);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 1 left 0 bits") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
SBigFromUnsigned(b, 1);
Shl(a->Primary(), b->Primary(), 0);
a->Primary().Trim();
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 1);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 1 left 1 bit") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
SBigFromUnsigned(b, 1);
Shl(a->Primary(), b->Primary(), 1);
a->Primary().Trim();
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 2);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 2 left 1 bit") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
SBigFromUnsigned(b, 2);
Shl(a->Primary(), b->Primary(), 1);
a->Primary().Trim();
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 4);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 256 left 7 bits") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
SBigFromUnsigned(b, 256);
Shl(a->Primary(), b->Primary(), 7);
a->Primary().Trim();
CHECK(a->Primary().Count() == 1);
CHECK(a->Primary()[0] == 32768);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 0xFFFFFFFF left 10 bits") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
uint64_t b_ = 0xFFFFFFFF;
SBigFromBinary(b, reinterpret_cast<uint8_t*>(&b_), sizeof(b_));
Shl(a->Primary(), b->Primary(), 10);
a->Primary().Trim();
CHECK(a->Primary().Count() == 2);
CHECK(a->Primary()[0] == 0xFFFFFC00);
CHECK(a->Primary()[1] == 0x3FF);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 0x1000000000000000 left 1 bit") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
uint64_t b_ = 0x1000000000000000;
SBigFromBinary(b, reinterpret_cast<uint8_t*>(&b_), sizeof(b_));
Shl(a->Primary(), b->Primary(), 1);
a->Primary().Trim();
CHECK(a->Primary().Count() == 2);
CHECK(a->Primary()[0] == 0);
CHECK(a->Primary()[1] == 0x20000000);
SBigDel(a);
SBigDel(b);
}
SECTION("shifts 0x1000000000000000 left 16 bits") {
BigData* a;
SBigNew(&a);
BigData* b;
SBigNew(&b);
uint64_t b_ = 0x1000000000000000;
SBigFromBinary(b, reinterpret_cast<uint8_t*>(&b_), sizeof(b_));
Shl(a->Primary(), b->Primary(), 16);
a->Primary().Trim();
CHECK(a->Primary().Count() == 3);
CHECK(a->Primary()[0] == 0);
CHECK(a->Primary()[1] == 0);
CHECK(a->Primary()[2] == 0x1000);
SBigDel(a);
SBigDel(b);
}
}
TEST_CASE("Shr", "[big]") {
SECTION("shifts 0 right 1 bit") {
BigData* a;