From 7b2d72d4b504bc1ee011526c23492bd0417e4644 Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Mon, 25 Apr 2016 15:15:09 +0900
Subject: [PATCH] rename Fp::Dbl to FpDbl

---
 include/mcl/fp.hpp       |  3 +--
 include/mcl/fp_tower.hpp | 25 ++++++++++++-------------
 test/fp_tower_test.cpp   |  2 +-
 3 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/include/mcl/fp.hpp b/include/mcl/fp.hpp
index 3f913aa..ce33248 100644
--- a/include/mcl/fp.hpp
+++ b/include/mcl/fp.hpp
@@ -60,11 +60,10 @@ class FpT : public fp::Operator<FpT<tag, maxBitSize> > {
 	static fp::Op op_;
 	template<class tag2, size_t maxBitSize2> friend class FpT;
 	Unit v_[maxSize];
+public:
 	template<class Fp> friend class FpDblT;
 	template<class Fp> friend class Fp2T;
 	template<class Fp> friend struct Fp6T;
-public:
-	class Dbl;
 	// return pointer to array v_[]
 	const Unit *getUnit() const { return v_; }
 	static inline size_t getUnitSize() { return op_.N; }
diff --git a/include/mcl/fp_tower.hpp b/include/mcl/fp_tower.hpp
index 29aa978..5bf1417 100644
--- a/include/mcl/fp_tower.hpp
+++ b/include/mcl/fp_tower.hpp
@@ -10,10 +10,9 @@
 
 namespace mcl {
 
-template<class tag, size_t maxBitSize>
-class FpT<tag, maxBitSize>::Dbl {
+template<class Fp>
+class FpDblT {
 	typedef fp::Unit Unit;
-	typedef FpT<tag, maxBitSize> Fp;
 	Unit v_[Fp::maxSize * 2];
 public:
 	static inline size_t getUnitSize() { return Fp::op_.N * 2; }
@@ -28,11 +27,11 @@ public:
 	// QQQ : does not check range of x strictly(use for debug)
 	void setMpz(const mpz_class& x)
 	{
-		if (x < 0) throw cybozu::Exception("Dbl:_setMpz:negative is not supported") << x;
+		if (x < 0) throw cybozu::Exception("FpDblT:_setMpz:negative is not supported") << x;
 		const size_t xn = gmp::getUnitSize(x);
 		const size_t N2 = getUnitSize();
 		if (xn > N2) {
-			throw cybozu::Exception("Dbl:setMpz:too large") << x;
+			throw cybozu::Exception("FpDblT:setMpz:too large") << x;
 		}
 		memcpy(v_, gmp::getUnit(x), xn * sizeof(Unit));
 		memset(v_ + xn, 0, (N2 - xn) * sizeof(Unit));
@@ -41,16 +40,16 @@ public:
 	{
 		gmp::setArray(x, v_, Fp::op_.N * 2);
 	}
-	static inline void add(Dbl& z, const Dbl& x, const Dbl& y) { Fp::op_.fpDbl_add(z.v_, x.v_, y.v_); }
-	static inline void sub(Dbl& z, const Dbl& x, const Dbl& y) { Fp::op_.fpDbl_sub(z.v_, x.v_, y.v_); }
-	static inline void addNC(Dbl& z, const Dbl& x, const Dbl& y) { Fp::op_.fpDbl_addNC(z.v_, x.v_, y.v_); }
-	static inline void subNC(Dbl& z, const Dbl& x, const Dbl& y) { Fp::op_.fpDbl_subNC(z.v_, x.v_, y.v_); }
+	static inline void add(FpDblT& z, const FpDblT& x, const FpDblT& y) { Fp::op_.fpDbl_add(z.v_, x.v_, y.v_); }
+	static inline void sub(FpDblT& z, const FpDblT& x, const FpDblT& y) { Fp::op_.fpDbl_sub(z.v_, x.v_, y.v_); }
+	static inline void addNC(FpDblT& z, const FpDblT& x, const FpDblT& y) { Fp::op_.fpDbl_addNC(z.v_, x.v_, y.v_); }
+	static inline void subNC(FpDblT& z, const FpDblT& x, const FpDblT& y) { Fp::op_.fpDbl_subNC(z.v_, x.v_, y.v_); }
 	/*
 		mul(z, x, y) = mulPre(xy, x, y) + mod(z, xy)
 	*/
-	static inline void mulPre(Dbl& xy, const Fp& x, const Fp& y) { Fp::op_.fpDbl_mulPre(xy.v_, x.v_, y.v_); }
-	static inline void sqrPre(Dbl& xx, const Fp& x) { Fp::op_.fpDbl_sqrPre(xx.v_, x.v_); }
-	static inline void mod(Fp& z, const Dbl& xy) { Fp::op_.fpDbl_mod(z.v_, xy.v_); }
+	static inline void mulPre(FpDblT& xy, const Fp& x, const Fp& y) { Fp::op_.fpDbl_mulPre(xy.v_, x.v_, y.v_); }
+	static inline void sqrPre(FpDblT& xx, const Fp& x) { Fp::op_.fpDbl_sqrPre(xx.v_, x.v_); }
+	static inline void mod(Fp& z, const FpDblT& xy) { Fp::op_.fpDbl_mod(z.v_, xy.v_); }
 };
 
 /*
@@ -61,7 +60,7 @@ public:
 template<class Fp>
 class Fp2T : public fp::Operator<Fp2T<Fp> > {
 	typedef fp::Unit Unit;
-	typedef typename Fp::Dbl FpDbl;
+	typedef FpDblT<Fp> FpDbl;
 	static Fp xi_a_;
 public:
 	Fp a, b;
diff --git a/test/fp_tower_test.cpp b/test/fp_tower_test.cpp
index aa60f5a..8ad6e9e 100644
--- a/test/fp_tower_test.cpp
+++ b/test/fp_tower_test.cpp
@@ -9,7 +9,7 @@
 
 typedef mcl::FpT<mcl::FpTag, 256> Fp;
 typedef mcl::Fp2T<Fp> Fp2;
-typedef Fp::Dbl FpDbl;
+typedef mcl::FpDblT<Fp> FpDbl;
 typedef mcl::Fp6T<Fp> Fp6;
 typedef mcl::Fp12T<Fp> Fp12;