Week 1 Day 3

.gitignore

@@ -34,3 +34,13 @@ cpp/ANSI/W1/Day2/2.5/comments
 cpp/ANSI/W1/Day2/2.6/functions
 cpp/ANSI/W1/Day2/2.7/function-math
 cpp/ANSI/W1/Day2/Ex.5/function-math
+cpp/ANSI/W1/Day3/3.1/sizeofvars
+cpp/ANSI/W1/Day3/3.2/variableusage
+cpp/ANSI/W1/Day3/3.4/overflow
+cpp/ANSI/W1/Day3/3.3/typedef
+cpp/ANSI/W1/Day3/3.5/overflowint
+cpp/ANSI/W1/Day3/3.6/printchars
+cpp/ANSI/W1/Day3/3.7/printchars2
+cpp/ANSI/W1/Day3/3.8/enumeratedconstants
+cpp/ANSI/W1/Day3/3.9/enumeratedconstants2
+cpp/ANSI/W1/Day3/Ex.SpecialChars/specialchars

.vscode/settings.json

@@ -14,6 +14,7 @@
         "format": "cpp",
         "initializer_list": "cpp",
         "span": "cpp",
-        "ostream": "cpp"
+        "ostream": "cpp",
+        "iostream": "cpp"
     }
 }

cpp/ANSI/W1/Day3/3.1/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o sizeofvars main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: sizeofvars
+	./sizeofvars
+
+clean:
+	rm -f sizeofvars

cpp/ANSI/W1/Day3/3.1/main.cpp

@@ -0,0 +1,19 @@
+// Show the size of variable types on localhost
+#include <iostream>
+
+int main()
+{
+    using std::cout;
+
+    cout << "The size of an int is:\t\t" << sizeof(int) << " bytes.\n";
+    cout << "The size of a short int is:\t" << sizeof(short) << " bytes.\n";
+    cout << "The size of a long int is:\t" << sizeof(long) << " bytes.\n";
+    cout << "The size of a char is:\t\t" << sizeof(char) << " bytes.\n";
+    cout << "The size of a float is:\t\t" << sizeof(float) << " bytes.\n";
+    cout << "The size of a _Float16 is:\t" << sizeof(_Float16) << " bytes.\n";
+    cout << "The size of a __float128 is:\t" << sizeof(__float128) << " bytes.\n";
+    cout << "The size of a double is:\t" << sizeof(double) << " bytes.\n";
+    cout << "The size of a bool is:\t\t" << sizeof(bool) << " bytes.\n";
+
+    return 0;
+}

cpp/ANSI/W1/Day3/3.2/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o variableusage main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: variableusage
+	./variableusage
+
+clean:
+	rm -f variableusage

cpp/ANSI/W1/Day3/3.2/main.cpp

@@ -0,0 +1,19 @@
+// Demonstration on how to use variables
+#include <iostream>
+
+int main()
+{
+    using namespace std;
+    unsigned short int Width = 5, Length;
+    Length = 10;
+
+    // create an unsigned short and initialize with results
+    // of multiplying length by width
+    unsigned short int Area = (Width * Length);
+
+    cout << "Width:\t" << Width << endl;
+    cout << "Length:\t" << Length << endl;
+    cout << "Area:\t" << Area << endl;
+
+    return 0;
+}

cpp/ANSI/W1/Day3/3.3/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o typedef main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: typedef
+	./typedef
+
+clean:
+	rm -f typedef

cpp/ANSI/W1/Day3/3.3/main.cpp

@@ -0,0 +1,21 @@
+// Demonstration on what a typedef is how to declare one.
+#include <iostream>
+
+typedef unsigned short int USHORT;
+
+int main()
+{
+    using namespace std;
+    USHORT Width = 5, Length;
+    Length = 10;
+
+    // create an unsigned short and initialize with results
+    // of multiplying length by width
+    unsigned short int Area = (Width * Length);
+
+    cout << "Width:\t" << Width << endl;
+    cout << "Length:\t" << Length << endl;
+    cout << "Area:\t" << Area << endl;
+
+    return 0;
+}

cpp/ANSI/W1/Day3/3.4/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o overflow main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: overflow
+	./overflow
+
+clean:
+	rm -f overflow

cpp/ANSI/W1/Day3/3.4/main.cpp

@@ -0,0 +1,16 @@
+// Demonstrating buffer overflow with unsigned short int
+#include <iostream>
+
+int main()
+{
+    using namespace std;
+
+    unsigned short int smallNumber = 65535;
+    cout << "small number:\t" << smallNumber << endl;
+    smallNumber++;
+    cout << "small number:\t" << smallNumber << endl;
+    smallNumber++;
+    cout << "small number:\t" << smallNumber << endl;
+
+    return 0;
+}

cpp/ANSI/W1/Day3/3.5/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o overflowint main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: overflowint
+	./overflowint
+
+clean:
+	rm -f overflowint

cpp/ANSI/W1/Day3/3.5/main.cpp

@@ -0,0 +1,17 @@
+// Demonstrating another overflow for a signed short int
+#include <iostream>
+
+int main()
+{
+    using namespace std;
+
+    short int smallNumber = 32767;
+
+    cout << "small number:\t" << smallNumber << endl;
+    smallNumber++;
+    cout << "small number:\t" << smallNumber << endl;
+    smallNumber++;
+    cout << "small number:\t" << smallNumber << endl;
+
+    return 0;
+}

cpp/ANSI/W1/Day3/3.6/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o printchars main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: printchars
+	./printchars
+
+clean:
+	rm -f printchars

cpp/ANSI/W1/Day3/3.6/main.cpp

@@ -0,0 +1,9 @@
+// Demonstrate printing characters based on numbers
+#include <iostream>
+
+int main()
+{
+    for (int i = 0; i<128; i++)
+        std::cout << "i is equal to:\t" << i << "---: " << (char) i << std::endl;
+    return 0;
+}

cpp/ANSI/W1/Day3/3.7/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o printchars2 main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: printchars2
+	./printchars2
+
+clean:
+	rm -f printchars2

cpp/ANSI/W1/Day3/3.7/main.cpp

@@ -0,0 +1,9 @@
+// Demonstrate printing characters with numbers take 2
+#include <iostream>
+
+int main()
+{
+    for (unsigned char i = 0; i<128; i++)
+        std::cout << "i is equal to:\t" << i << std::endl;
+    return 0;
+}

cpp/ANSI/W1/Day3/3.8/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o enumeratedconstants main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: enumeratedconstants
+	./enumeratedconstants
+
+clean:
+	rm -f enumeratedconstants

cpp/ANSI/W1/Day3/3.8/main.cpp

@@ -0,0 +1,19 @@
+// Demonstrate enumerated constants
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    enum Days { Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday };
+
+    Days today;
+    today = Sunday;
+
+    if (today == Sunday || today == Saturday)
+        cout << "\nGotta love the weekends!\n";
+    else
+        cout << "\nBack to work.\n";
+
+    return 0;
+}

cpp/ANSI/W1/Day3/3.9/Makefile

@@ -0,0 +1,13 @@
+CFLAGS = -std=c++03 -O2
+LDFLAGS = -lglfw -lvulkan -ldl -lpthread -lX11 -lXxf86vm -lXrandr -lXi
+
+1.1: main.cpp
+	c++ $(CFLAGS) -o enumeratedconstants2 main.cpp $(LDFLAGS)
+
+.PHONY: test clean
+
+test: enumeratedconstants2
+	./enumeratedconstants2
+
+clean:
+	rm -f enumeratedconstants2

cpp/ANSI/W1/Day3/3.9/main.cpp

@@ -0,0 +1,25 @@
+// Same as before but with a const int list
+#include <iostream>
+
+int main()
+{
+
+const int Sunday = 0;
+const int Monday = 1;
+const int Tuesday = 2;
+const int Wednesday = 3;
+const int Thursday = 4;
+const int Friday = 5;
+const int Saturday = 6;
+
+int today;
+today = Monday;
+
+if (today == Sunday || today == Saturday)
+std::cout << "\nGotta’ love the weekends!\n";
+
+else
+std::cout << "\nBack to work.\n";
+
+return 0;
+}

cpp/ANSI/W1/Day3/Ex.SpecialChars/main.cpp

@@ -0,0 +1,22 @@
+// List of special chars that can be used in chat with cout
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    cout << "the \\a character is an ALERT (bell)" << endl;
+    cout << "The \\b character is a backspace..\b" << endl;
+    cout << "the \\f operater is for form feed \fTest after the flag" << endl;
+    cout << "the \\n operator is a newline character.\n";
+    cout << "\rthe \\r operator is a Carraige return.\n\r";
+    cout << "the \\t operator is a \tTab" << endl;
+    cout << "the \\v operator is a vertial \vtab\n";
+    cout << "the \\' operator is a single quote character \'Quotation\'\n";
+    cout << "the \\\" operator is for double \"quotes\"\n";
+    cout << "the \? operator is for Question Mark\n";
+    cout << "the \\ operator is for Backslash\n";
+    cout << "the \\000 operator is for Octal Notation \101\101\n";
+    cout << "the \\xhhh is for Hexadecimal Notation \xFF\xAA\n";
+    return 0;
+}

cpp/ANSI/W1/Day3/Quiz/quiz.txt

@@ -0,0 +1,34 @@
+1. What is the difference between an integer variable and a floating-point variable?
+
+2. What are the differences between an unsigned short int and a long int?
+
+3. What are the advantages of using a symbolic constant rather than a literal constant?
+
+4. What are the advantages of using the const keyword rather than #define?
+
+5. What makes for a good or bad variable name?
+
+6. Given this enum, what is the value of BLUE?
+enum COLOR { WHITE, BLACK = 100, RED, BLUE, GREEN = 300 };
+
+7. Which of the following variable names are good, which are bad, and which are
+invalid?
+a. Age
+b. !ex
+c. R79J
+d. TotalIncome
+e. __Invalid
+
+--------------------------------------------------------------------------------
+1. What would be the correct variable type in which to store the following
+information?
+a. Your age
+b. The area of your backyard
+c. The number of stars in the galaxy
+d. The average rainfall for the month of January
+
+2. Create good variable names for this information.
+
+3. Declare a constant for pi as 3.14159.
+
+4. Declare a float variable and initialize it using your pi constant.

cpp/vulkan/HelloTriangle/main.cpp

@@ -10,8 +10,8 @@
 class HelloTriangleApplication {
 public:
     void run() {
+        initVulkan();
         initWindow();
-        initVulkan();        
         mainLoop();
         cleanup();
     }
@@ -48,6 +48,6 @@ int main() {
         return EXIT_FAILURE;
     }
 
-//    std::cout << "Success!!!";
+    std::cout << "Success!!!\n";
     return EXIT_SUCCESS;
 }