From 0bd2ab4d1f9e8fdbf55ed11d61fe2e75720a334a Mon Sep 17 00:00:00 2001
From: justanothercatgirl <sotov@twistea.su>
Date: Thu, 17 Apr 2025 12:48:23 +0300
Subject: finished 206, 207

---
 libprakpp/include/prakmatrix.hpp | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

(limited to 'libprakpp/include/prakmatrix.hpp')

diff --git a/libprakpp/include/prakmatrix.hpp b/libprakpp/include/prakmatrix.hpp
index f1ccddc..2f87401 100644
--- a/libprakpp/include/prakmatrix.hpp
+++ b/libprakpp/include/prakmatrix.hpp
@@ -2,6 +2,7 @@
 
 #include "prakcommon.hpp"
 
+#include <iomanip>
 #include <cstring>
 #include <ostream>
 #include <optional>
@@ -75,7 +76,7 @@ struct matrix : public std::vector<T> {
 	}
 	/// multiply matrix by a scalar
 	template <typename Arg>
-	std::enable_if_t<std::is_arithmetic_v<Arg>, struct matrix<T>>::type
+	typename std::enable_if_t<std::is_arithmetic_v<Arg>, struct matrix<T>>::type
 	operator*(const Arg other) const {
 		struct matrix<T> ret(rows, cols);
 		for (size_t i = 0; i < this->size(); ++i)
@@ -161,12 +162,27 @@ struct matrix : public std::vector<T> {
 		}
 		return ret;
 	}
+	
+	void add_row(size_t index, std::vector<T> row_data) {
+		++rows;
+		this->resize(rows * cols);
+		memmove(this->data() + cols * (index+1), this->data() + cols * index, (rows - index - 1) * cols * sizeof (T));
+		for (size_t i = 0; i < cols; ++i)
+			this->operator[](index * cols + i) = row_data[i];
+	}
+	void add_column(size_t index, std::vector<T> column_data) {
+		this->reserve(rows * (cols + 1));
+		for (size_t i = 0; i < rows; ++i)
+			this->insert(this->begin() + (cols + 1) * i + index, column_data[i]);
+		++cols;
+	}
 
 	std::ostream &print(std::ostream &out = std::cout, size_t width = 10) const {
+		std::cout.setf(std::ios::left);
 		for (size_t row = 0; row < rows; ++row) {
 			for (size_t col = 0; col < cols; ++col)
-				out << "|" << std::setw(width) << SUBSCR_OPRTR(row, col); 
-			std::cout << "|\n";
+				out /*<< "|"*/ << std::setw(width) << SUBSCR_OPRTR(row, col); 
+			std::cout << "\n";
 		}
 		return out;
 	}
-- 
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