add remark for mulCT, powCT

include/mcl/ec.hpp

@@ -594,6 +594,7 @@ public:
 	{
 		mulArray(z, x, gmp::getUnit(y), abs(y.get_mpz_t()->_mp_size), y < 0);
 	}
+	// @note time is depend on bitlength of y
 	template<class tag, size_t maxBitSize, template<class _tag, size_t _maxBitSize>class FpT>
 	static inline void mulCT(EcT& z, const EcT& x, const FpT<tag, maxBitSize>& y)
 	{
@@ -601,6 +602,7 @@ public:
 		y.getBlock(b);
 		mulArray(z, x, b.p, b.n, false, true);
 	}
+	// @note time is depend on bitlength of y
 	static inline void mulCT(EcT& z, const EcT& x, const mpz_class& y)
 	{
 		mulArray(z, x, gmp::getUnit(y), abs(y.get_mpz_t()->_mp_size), y < 0, true);

include/mcl/operator.hpp

@@ -47,6 +47,7 @@ struct Operator : E {
 		y.getBlock(b);
 		powArray(z, x, b.p, b.n, false, false);
 	}
+	// @note time is depend on bitlength of y
 	template<class tag2, size_t maxBitSize2, template<class _tag, size_t _maxBitSize> class FpT>
 	static void powCT(T& z, const T& x, const FpT<tag2, maxBitSize2>& y)
 	{
@@ -63,6 +64,7 @@ struct Operator : E {
 	{
 		powArray(z, x, gmp::getUnit(y), abs(y.get_mpz_t()->_mp_size), y < 0, false);
 	}
+	// @note time is depend on bitlength of y
 	static void powCT(T& z, const T& x, const mpz_class& y)
 	{
 		powArray(z, x, gmp::getUnit(y), abs(y.get_mpz_t()->_mp_size), y < 0, true);