Move CPP code here

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 54 insertions, 0 deletions

diff --git a/CPP/cpp_book/chap2/greeting.cpp b/CPP/cpp_book/chap2/greeting.cpp
new file mode 100644
index 0000000..516d36a
--- /dev/null
+++ b/CPP/cpp_book/chap2/greeting.cpp
@@ -0,0 +1,54 @@
+#include <iostream>
+#include <string>
+
+#define ROW_PAD 5
+#define COL_PAD	8
+
+int main(void)
+{
+	using std::cout;	using std::endl;
+	using std::cin;		using std::string;
+
+	const int rows = ROW_PAD * 2 + 3;	// empty + first/last line + greeting
+	string name;
+
+	cout << "Enter your name: ";
+	cin >> name;
+
+	const string greeting = "Hello " + name + "!";
+	const string::size_type cols = COL_PAD * 2 + greeting.size() + 2;
+
+	cout << endl;
+
+	/*
+	 * Loop invariant:
+	 * 	-We've written 'r' rows so far
+	 */
+	const string col_blank(COL_PAD, ' ');
+	const string row_blank(cols - 2, ' ');
+	for (int r = 0; r != rows; r++) {
+
+		string::size_type c = 0;
+		/*
+		 * Loop invariant:
+		 * 	- We've written 'c' columns so far
+		 */
+		while (c != cols) {
+			if (r == ROW_PAD + 1 && c == 1) {
+				cout << col_blank << greeting << col_blank;
+				c += greeting.size() + (col_blank.size() * 2);
+			} else {
+				if (r == 0 || r == rows - 1 ||
+				    c == 0 || c == cols - 1) {
+					cout << "*";
+					c++;
+				} else {
+					cout << row_blank;
+					c += row_blank.size();
+				}
+			}
+		}
+		cout << endl;
+	}
+	return 0;
+}