refactor

almost complete. Need to doublecheck names for functions in *_serial.h

include/numerics/detail/isclose_serial.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <cstdint> //uint64_t
+//#include <stdexcept> // std::runtime_error
+
+#include "../utils/vector.h"
+#include "../utils/matrix.h"
+#include <cmath> // std::abs
+
+
+namespace numerics::detail{
+	
+	// ---------------- Matrix ----------------
+	template <typename T>
+	inline bool isclose_serial(const utils::Matrix<T>& A, const utils::Matrix<T> & B, const T tol = T{1e-5}) {
+	    const uint64_t rows = A.rows();
+	    const uint64_t cols = A.cols();
+
+	    if ((rows != B.rows()) || (cols != B.cols())){
+	    	return false;
+	    }
+
+		for (uint64_t i = 0; i < rows; ++i){
+			for (uint64_t j = 0; j < cols; ++j){
+				if (static_cast<T>(std::abs(A(i,j)-B(i,j))) > tol){
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	// ---------------- Vector ----------------
+	template <typename T>
+	inline bool isclose_serial(const utils::Vector<T>& v, const utils::Vector<T>& p, const T tol = T{1e-5}) {
+		const uint64_t N = v.size();
+		if (N != p.size()){
+			return false;
+		}
+		for (uint64_t i = 0; i < N; ++i){
+			if (static_cast<T>(std::abs((v[i]-p[i]))) > tol){
+				return false;
+			}
+		}
+		return true;
+	}
+
+} // namespace numerics
+