Adding BigInts, based off libtomcrypto / libtommath.

1 files changed, 80 insertions, 0 deletions

diff --git a/includes/BigInt.h b/includes/BigInt.h
new file mode 100644
index 0000000..a74df6e
--- /dev/null
+++ b/includes/BigInt.h
@@ -0,0 +1,80 @@
+#pragma once
+
+#include <stdint.h>
+#include <Exceptions.h>
+#include <BString.h>
+
+namespace Balau {
+
+class BigInt {
+  public:
+      BigInt() throw(GeneralException);
+      BigInt(const BigInt &) throw (GeneralException);
+      BigInt(BigInt &&);
+      ~BigInt();
+
+    BigInt & operator=(const BigInt &) throw (GeneralException);
+
+    void set(uint64_t) throw (GeneralException);
+    void set(int64_t);
+    void set(uint32_t) throw (GeneralException);
+    void set(int32_t);
+    void set(double) throw (GeneralException);
+    void set(const String &, int radix = 10) throw (GeneralException);
+    void set2expt(int i) throw (GeneralException);
+
+    BigInt operator+(unsigned int) const throw (GeneralException);
+    BigInt operator+(const BigInt &) const throw (GeneralException);
+    BigInt operator-(unsigned int) const throw (GeneralException);
+    BigInt operator-(const BigInt &) const throw (GeneralException);
+    BigInt operator*(unsigned int) const throw (GeneralException);
+    BigInt operator*(const BigInt &) const throw (GeneralException);
+    BigInt operator/(const BigInt &) const throw (GeneralException);
+    BigInt operator%(const BigInt &) const throw (GeneralException);
+    BigInt operator<<(unsigned int) const throw (GeneralException);
+    BigInt operator>>(unsigned int) const;
+
+    BigInt & operator+=(unsigned int) throw (GeneralException);
+    BigInt & operator+=(const BigInt &) throw (GeneralException);
+    BigInt & operator-=(unsigned int) throw (GeneralException);
+    BigInt & operator-=(const BigInt &) throw (GeneralException);
+    BigInt & operator*=(unsigned int) throw (GeneralException);
+    BigInt & operator*=(const BigInt &) throw (GeneralException);
+    BigInt & operator/=(const BigInt &) throw (GeneralException);
+    BigInt & operator%=(const BigInt &) throw (GeneralException);
+    BigInt & operator<<=(unsigned int) throw (GeneralException);
+    BigInt & operator>>=(unsigned int);
+
+    BigInt operator-() const throw (GeneralException);
+
+    BigInt & operator++();
+    BigInt operator++(int);
+    BigInt & operator--();
+    BigInt operator--(int);
+
+    enum comp_t { LT, GT, EQ };
+    comp_t comp(const BigInt &) const throw (GeneralException);
+
+    BigInt & neg() throw (GeneralException);
+
+    BigInt sqrt() const throw (GeneralException);
+    BigInt & do_sqrt() throw (GeneralException);
+
+    BigInt gcd(const BigInt &) const throw (GeneralException);
+    BigInt lcm(const BigInt &) const throw (GeneralException);
+
+    bool operator==(const BigInt &) const;
+    bool operator!=(const BigInt &) const;
+    bool operator<=(const BigInt &) const;
+    bool operator>=(const BigInt &) const;
+    bool operator<(const BigInt &) const;
+    bool operator>(const BigInt &) const;
+
+    String toString(int radix = 10) const;
+    char * makeString(int radix = 10) const;
+
+  private:
+    void * m_bi = NULL;
+};
+
+};