Biginteger/decimal

tests/BigDecimalTest.cpp

@@ -0,0 +1,41 @@
+#include <BigDecimal.hpp>
+
+#include <cassert>
+#include <iostream>
+#include <string>
+
+int main() {
+    using bstl::BigDecimal;
+
+    // 基本构造
+    BigDecimal a("123.45");
+    BigDecimal b("67.89");
+    BigDecimal c = a + b;
+
+    assert(c.toString() == "191.34");
+
+    // 减法
+    BigDecimal d = a - b;
+    assert(d.toString() == "55.56");
+
+    // 乘法
+    BigDecimal e = a * BigDecimal("2");
+    assert(e.toString() == "246.90");
+
+    // 比较
+    assert((a > b) == true);
+    assert((a == a) == true);
+    assert((a != b) == true);
+
+    // 零
+    BigDecimal zero("0.0");
+    assert(zero.isZero());
+
+    // 负数
+    BigDecimal neg("-100.50");
+    assert(neg.sign() < 0);
+    assert((-neg).toString() == "100.50");
+
+    std::cout << "BigDecimal tests passed\n";
+    return 0;
+}

tests/BigIntegerTest.cpp

@@ -0,0 +1,31 @@
+#include <BigInteger.hpp>
+
+#include <cassert>
+#include <iostream>
+#include <string>
+
+int main() {
+    using bstl::BigInteger;
+
+    BigInteger a("12345678901234567890");
+    BigInteger b("98765432109876543210");
+    BigInteger c = a + b;
+    BigInteger d = b - a;
+    BigInteger e = a * BigInteger("2");
+    BigInteger f = BigInteger("100000000000000000000000") / BigInteger("1000000000000000000");
+
+    assert(c.toString() == "111111111011111111100");
+    assert(d.toString() == "86419753208641975320");
+    assert(e.toString() == "24691357802469135780");
+    assert(f.toString() == "100000");
+
+    BigInteger zero("0");
+    assert((a == a) == true);
+    assert((a != b) == true);
+    assert((zero == 0) == true);
+    assert((a > BigInteger("12345678901234567889")) == true);
+    assert((a < b) == true);
+
+    std::cout << "BigInteger tests passed\n";
+    return 0;
+}