Squashed 'src/snark/' content from commit 9ada3f8

git-subtree-dir: src/snark
git-subtree-split: 9ada3f84ab484c57b2247c2f41091fd6a0916573

src/algebra/knowledge_commitment/knowledge_commitment.tcc

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+/** @file
+ *****************************************************************************
+
+ Implementation of interfaces for:
+ - a knowledge commitment, and
+ - a knowledge commitment vector.
+
+ See knowledge_commitment.hpp .
+
+ *****************************************************************************
+ * @author     This file is part of libsnark, developed by SCIPR Lab
+ *             and contributors (see AUTHORS).
+ * @copyright  MIT license (see LICENSE file)
+ *****************************************************************************/
+
+#ifndef KNOWLEDGE_COMMITMENT_TCC_
+#define KNOWLEDGE_COMMITMENT_TCC_
+
+namespace libsnark {
+
+template<typename T1, typename T2>
+knowledge_commitment<T1,T2>::knowledge_commitment(const T1 &g, const T2 &h) :
+    g(g), h(h)
+{
+}
+
+template<typename T1, typename T2>
+knowledge_commitment<T1,T2> knowledge_commitment<T1,T2>::zero()
+{
+    return knowledge_commitment<T1,T2>(T1::zero(), T2::zero());
+}
+
+template<typename T1, typename T2>
+knowledge_commitment<T1,T2> knowledge_commitment<T1,T2>::one()
+{
+    return knowledge_commitment<T1,T2>(T1::one(), T2::one());
+}
+
+template<typename T1, typename T2>
+knowledge_commitment<T1,T2> knowledge_commitment<T1,T2>::operator+(const knowledge_commitment<T1,T2> &other) const
+{
+    return knowledge_commitment<T1,T2>(this->g + other.g,
+                                       this->h + other.h);
+}
+
+template<typename T1, typename T2>
+bool knowledge_commitment<T1,T2>::is_zero() const
+{
+    return (g.is_zero() && h.is_zero());
+}
+
+template<typename T1, typename T2>
+bool knowledge_commitment<T1,T2>::operator==(const knowledge_commitment<T1,T2> &other) const
+{
+    return (this->g == other.g &&
+            this->h == other.h);
+}
+
+template<typename T1, typename T2>
+bool knowledge_commitment<T1,T2>::operator!=(const knowledge_commitment<T1,T2> &other) const
+{
+    return !((*this) == other);
+}
+
+template<typename T1, typename T2, mp_size_t m>
+knowledge_commitment<T1,T2> operator*(const bigint<m> &lhs, const knowledge_commitment<T1,T2> &rhs)
+{
+    return knowledge_commitment<T1,T2>(lhs * rhs.g,
+                                       lhs * rhs.h);
+}
+
+template<typename T1, typename T2, mp_size_t m, const bigint<m> &modulus_p>
+knowledge_commitment<T1,T2> operator*(const Fp_model<m, modulus_p> &lhs, const knowledge_commitment<T1,T2> &rhs)
+{
+    return (lhs.as_bigint()) * rhs;
+}
+
+template<typename T1, typename T2>
+void knowledge_commitment<T1,T2>::print() const
+{
+    printf("knowledge_commitment.g:\n");
+    g.print();
+    printf("knowledge_commitment.h:\n");
+    h.print();
+}
+
+template<typename T1, typename T2>
+size_t knowledge_commitment<T1,T2>::size_in_bits()
+{
+        return T1::size_in_bits() + T2::size_in_bits();
+}
+
+template<typename T1,typename T2>
+std::ostream& operator<<(std::ostream& out, const knowledge_commitment<T1,T2> &kc)
+{
+    out << kc.g << OUTPUT_SEPARATOR << kc.h;
+    return out;
+}
+
+template<typename T1,typename T2>
+std::istream& operator>>(std::istream& in, knowledge_commitment<T1,T2> &kc)
+{
+    in >> kc.g;
+    consume_OUTPUT_SEPARATOR(in);
+    in >> kc.h;
+    return in;
+}
+
+} // libsnark
+
+#endif // KNOWLEDGE_COMMITMENT_TCC_