From f932df32535a85c934d632c17a2dfdf8c495cdc5 Mon Sep 17 00:00:00 2001
From: dm1sh <me@dmitriy.icu>
Date: Sat, 11 Dec 2021 20:37:46 +0300
Subject: [PATCH] Added convertation to string to BitArray

---
 QRCodeLibrary/BitArray.cpp | 15 ++++++++++++++-
 QRCodeLibrary/BitArray.hpp |  5 ++++-
 tests/BitArray_test.cpp    |  4 ++++
 3 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/QRCodeLibrary/BitArray.cpp b/QRCodeLibrary/BitArray.cpp
index 35f9bce..476a654 100644
--- a/QRCodeLibrary/BitArray.cpp
+++ b/QRCodeLibrary/BitArray.cpp
@@ -1,11 +1,24 @@
 #include "pch.h"
+
+#include <sstream>
+
 #include "BitArray.hpp"
 
-bool BitArray::get(unsigned index)
+bool BitArray::get(unsigned index) const
 {
     return (v[index / 8] >> (8 - 1 - index % 8)) & 1;
 }
 
+BitArray::operator std::string() const 
+{
+	std::stringstream res;
+
+	for (unsigned i = 0; i < size; i++)
+		res << static_cast<int>((*this).get(i));
+
+	return res.str();
+}
+
 void BitArray::set(unsigned index, bool val)
 {
 	if (val)
diff --git a/QRCodeLibrary/BitArray.hpp b/QRCodeLibrary/BitArray.hpp
index 5a45ec1..63d43e9 100644
--- a/QRCodeLibrary/BitArray.hpp
+++ b/QRCodeLibrary/BitArray.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <vector>
+#include <string>
 
 using namespace std;
 
@@ -12,11 +13,13 @@ class BitArray
 {
 public:
 	BitArray(unsigned size_ = 0) : size{ size_ }, v(ceil_div(size_, 8)) {};
+
+	operator std::string() const;
 	
 	unsigned size;
 	vector<unsigned char> v;
 
-	bool get(unsigned index);
+	bool get(unsigned index) const;
 	void set(unsigned index, bool val);
 	unsigned set(unsigned index, int32_t val, unsigned size);
 };
diff --git a/tests/BitArray_test.cpp b/tests/BitArray_test.cpp
index 2ee35d3..98c5063 100644
--- a/tests/BitArray_test.cpp
+++ b/tests/BitArray_test.cpp
@@ -24,6 +24,10 @@ TEST_F(BitArrayTests, GetsBitByIndex) {
 	EXPECT_EQ(a1.get(1), 0);
 }
 
+TEST_F(BitArrayTests, Converts_to_string) {
+	EXPECT_EQ(std::string(a1), "101010101111111");
+}
+
 TEST_F(BitArrayTests, SetsIndividualBit) {
 	a1.set(0, 0);
 	a1.set(1, 1);