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12 files changed, 266 insertions, 17 deletions

diff --git a/4p36.cpp b/4p36.cpp
new file mode 100644
index 0000000..5667dcb
--- /dev/null
+++ b/4p36.cpp
@@ -0,0 +1,16 @@
+#include <iostream>
+
+/*
+ *
+ * 4.36
+ *
+ *
+ */
+
+int main () {
+
+	int i = 10;
+	double d = 2;
+	std::cout << (i *= static_cast<int>(d)) << std::endl;
+	return 0;
+}
diff --git a/4p37.cpp b/4p37.cpp
new file mode 100644
index 0000000..2b8b16f
--- /dev/null
+++ b/4p37.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+
+/*
+ *
+ * 4.37
+ *
+ *
+ */
+
+int main () {
+
+	char s = 'a'; // just a variable we can use the address for to make the program not segfault
+	int i = 0;
+	double d = 0;
+	const std::string *ps = nullptr;
+	char *pc = &s;
+	void *pv = &s;
+	pv = const_cast<std::string*>(ps);
+	i = static_cast<int>(*pc);
+	pv = static_cast<void*>(&d);
+	pc = static_cast<char*>(pv);
+	if(i || d) {} // stop compiler from complaining
+	
+	return 0;
+}
diff --git a/4p38.cpp b/4p38.cpp
new file mode 100644
index 0000000..63c814a
--- /dev/null
+++ b/4p38.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+
+/*
+ *
+ * 4.38
+ *
+ *
+ */
+
+int main () {
+
+	int i = 3;
+	int j = 10;
+	double slope = static_cast<double>(j / i); // divide i and j as integers and then cast returned value to double
+	// double slope = static_cast<double>(j) / i; I suspect that this version of the expression is what we are actually trying to do
+	std::cout << slope << std::endl;
+	return 0;
+}
diff --git a/5p1.cpp b/5p1.cpp
new file mode 100644
index 0000000..bc7c0ed
--- /dev/null
+++ b/5p1.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+
+/*
+ *
+ * 5.1
+ *
+ *
+ */
+
+int main () {
+
+	// A null statement is just a semicolon ;
+	// For example, we can use it for a while loop (while loops require a statement) if the condition can do all the work in the loop.
+	int i = 0;
+	while (i++ != 10)
+		;
+	return 0;
+}
diff --git a/5p2.cpp b/5p2.cpp
new file mode 100644
index 0000000..ce158c9
--- /dev/null
+++ b/5p2.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+
+/*
+ *
+ * 5.2
+ *
+ *
+ */
+
+int main () {
+
+	// A block is when we need to do multiple statements for example within a loop (which only requires 1)
+	// A block is also useful to contain objects in a certain scope and such.
+	int i = 0;
+	int j = 0;
+	while(i != 100) { // Start of block
+		++i;
+		j = i * 2;
+	} // end of block
+
+	std::cout << i << " " << j << std::endl;
+	return 0;
+}
diff --git a/5p3.cpp b/5p3.cpp
new file mode 100644
index 0000000..58d5fbf
--- /dev/null
+++ b/5p3.cpp
@@ -0,0 +1,12 @@
+#include <iostream>
+
+/*
+ *
+ * Description
+ *
+ *
+ */
+
+int main () {
+	return 0;
+}
diff --git a/5p4.cpp b/5p4.cpp
new file mode 100644
index 0000000..d7cc8f6
--- /dev/null
+++ b/5p4.cpp
@@ -0,0 +1,27 @@
+
+/*
+ *
+ * 5.4
+ *
+ *
+ */
+
+int main () {
+
+	/*
+	auto iter = s.begin();
+	while(iter != s.end()) {
+	    // do stuff
+	}
+
+	bool status;
+	while((status = find(word))) {
+	    // do stuff
+	}
+	
+	if(!status) {
+	    // do stuff
+	}
+	*/
+	return 0;
+}
diff --git a/5p5.cpp b/5p5.cpp
new file mode 100644
index 0000000..b4aeff5
--- /dev/null
+++ b/5p5.cpp
@@ -0,0 +1,37 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 5.5
+ *
+ *
+ */
+
+int main () {
+
+	int TestScore = 0;
+	std::vector<std::string> GradeLetters = {"F", "D", "C", "B", "A", "A++"};
+	std::string FinalGrade;
+	if(std::cin >> TestScore) {} else { return -1; }
+	
+	if(TestScore < 0 || TestScore > 100) { return -1; }
+
+	if(TestScore < 60) {
+		FinalGrade = GradeLetters[0];
+	} else {
+		if(TestScore != 100) {
+			FinalGrade = GradeLetters[(TestScore-50) / 10];
+			if((TestScore % 10) > 7) {
+				FinalGrade += "+";
+			} else if((TestScore % 10) < 3) {
+				FinalGrade += "-";
+			}
+		} else {
+			FinalGrade = GradeLetters[5];
+		}
+	}
+
+	std::cout << "Your grade is: " << FinalGrade << std::endl;
+	return 0;
+}
diff --git a/5p6.cpp b/5p6.cpp
new file mode 100644
index 0000000..3681085
--- /dev/null
+++ b/5p6.cpp
@@ -0,0 +1,24 @@
+#include <iostream>
+#include <vector>
+
+/*
+ *
+ * 5.6
+ *
+ * I had no idea we were only making the simple
+ * version of this program in the previous exercise
+ */
+
+int main () {
+
+	int TestScore = 0;
+	std::vector<std::string> GradeLetters = {"F", "D", "C", "B", "A", "A++"};
+	std::string FinalGrade;
+	if(std::cin >> TestScore) {} else { return -1; }
+	
+	if(TestScore < 0 || TestScore > 100) { return -1; }
+
+	(TestScore < 60) ? FinalGrade = GradeLetters[0] : FinalGrade = GradeLetters[(TestScore - 50) / 10];
+	std::cout << "Your grade is: " << FinalGrade << std::endl;
+	return 0;
+}
diff --git a/5p7.cpp b/5p7.cpp
new file mode 100644
index 0000000..fcc850b
--- /dev/null
+++ b/5p7.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+
+/*
+ *
+ * 5.7
+ *
+ *
+ */
+
+int get_value() {
+
+	return 373;
+}
+
+int main () {
+
+	int ival1 = 50;
+	int ival2 = 100;
+	int minval = 10;
+	int occurs = 40;
+	int ival = 50;
+	if(ival1 != ival2)
+		ival1 = ival2;
+	else ival1 = ival2 = 0;
+
+	if(ival < minval) {
+		minval = ival;
+		occurs = 1;
+	}
+
+	int ival3;
+	if((ival3 = get_value()))
+		std::cout << "ival = " << ival << std::endl;
+	if(!ival3)
+		std::cout << "ival = 0\n";
+
+	if(ival == 0)
+		ival = get_value();
+
+	if(occurs) // stop compiler from complaining
+		
+	return 0;
+}
diff --git a/5p8.cpp b/5p8.cpp
new file mode 100644
index 0000000..4e9b5b1
--- /dev/null
+++ b/5p8.cpp
@@ -0,0 +1,23 @@
+
+/*
+ *
+ * 5.8
+ *
+ *
+ */
+
+int main () {
+
+	// Dangling else is the ambiguity in if else statements
+	/*
+	  if(condition)
+	      statement 
+	  if(condition2)
+	      statement
+	  if(condition3)
+	      statement
+	  else
+	      statement
+	 */
+	return 0;
+}
diff --git a/gede2.ini b/gede2.ini
deleted file mode 100644
index 17e43c9..0000000
--- a/gede2.ini
+++ /dev/null
@@ -1,17 +0,0 @@
-Breakpoints="/home/oskar/code/primer/4p27.cpp:18;/home/oskar/code/primer/4p27.cpp:12"

-CoreDumpFile="./core"

-Download=1

-GdpPath="gdb"

-GoToRecentlyUsed=""

-InitCommands=""

-InitialBreakpoint="main"

-LastProgram="4p27"

-LastProgramArguments=""

-Mode=0

-ReuseBreakpoints=0

-RunningPid=0

-SerialBaudRate=1200

-SerialPort=""

-TcpHost="localhost"

-TcpPort=2000

-