Start Day 4

Author: zarethrex

include/advent_of_code/day_4.hxx

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+#pragma once
+
+#include <fstream>
+#include <vector>
+
+namespace AdventOfCode::Day4 {
+	int get_matches(const std::string& word, const std::vector<std::string>& block);
+};

src/day_4.cxx

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+#include "advent_of_code/day_4.hxx"
+
+namespace AdventOfCode::Day4 {
+	int get_matches(const std::string& word, const std::vector<std::string> block) {	
+	}	
+};

tests/data/day_4_1.txt

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+MMMSXXMASM
+MSAMXMSMSA
+AMXSXMAAMM
+MSAMASMSMX
+XMASAMXAMM
+XXAMMXXAMA
+SMSMSASXSS
+SAXAMASAAA
+MAMMMXMMMM
+MXMXAXMASX

tests/test_day_4.cxx

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+
+#include <gtest/gtest.h>
+#include <string>
+#include "advent_of_code/day_3.hxx"
+
+using namespace AdventOfCode::Day4;
+
+#ifndef ADVENT_OF_CODE_DATA
+  #error "ADVENT_OF_CODE_DATA is not defined!"
+#endif
+
+TEST(TestAOC, TestDay4pt1_block_parse) {
+	const std::string word{"XMAS"};
+	const std::string block{"XJYSAMXOTX\nMHRHXMASMD\nAGKUWQAP\nSCYKOSTRY\n"};
+	const int n_matches{get_matches(word, block)};
+
+	ASSERT_EQ(n_matches, 4);
+}
+