more exercises

1 files changed, 37 insertions, 0 deletions

diff --git a/3p13.cpp b/3p13.cpp
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index 0000000..ca60b58
--- /dev/null
+++ b/3p13.cpp
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+#include <iostream>
+#include <vector>
+#include "sales_data.hpp"
+#include "sales_item.hpp"
+
+/*
+ *
+ * 3.13
+ *
+ *
+ */
+
+using std::string;
+using std::cout;
+using std::cin;
+using std::cerr;
+using std::clog;
+using std::endl;
+using std::vector;
+int main () {
+
+    vector<int> v1; // 0 elements?
+	vector<int> v2(10); // 10 elements, default initialized
+	vector<int> v3(10, 42); // 10 elements, all initialized to 42
+	vector<int> v4{10}; // 1 element, initialized to 10.
+	vector<int> v5{10, 42}; // 2 elements, first one 10, second one 42
+	vector<string> v6{10}; // Not really valid but it creates 10 elements of default initialized strings. Empty strings.
+	vector<string> v7{10, "hi"}; // Not really valid but creates 10 elements that says "hi"
+
+	// some extra testing below
+	vector<string> v8(10); // same as v6?
+	vector<string> v9(10, "hi"); // Same as v7?
+
+	cout << v7[1] << endl;
+	cout << v9[1] << endl;
+	return 0;
+}