Add Lecture 3 material.

Author: kohler

fundamentals2/GNUmakefile

@@ -1,4 +1,4 @@
-PROGRAMS = vars1 vars2 vars3 vars4 ptr struct union addrspace
+PROGRAMS = vars1 vars2 vars3 vars4 ptr struct
 
 all: $(PROGRAMS)
 

fundamentals2/addrspace.c

@@ -5,17 +5,14 @@
 
 int array[10];
 
-int main(int argc, char *argv[]) {
-	(void)argc;
-	(void)argv;
+int main(int argc, char* argv[]) {
+    (void) argc, (void) argv;
 
-	int *p;
+    int* p = &array[0];
 
-	p = &array[0];
-
-	printf("Address of array: %p\n", array);
-	printf("Value of p: %p\n", p);
-	printf("Value of &p[1]: %p\n", &p[1]);
-	printf("Value of p + 1: %p\n", p + 1);
-	return 0;
+    printf("Address of array: %p\n", array);
+    printf("Value of p: %p\n", p);
+    printf("Value of &p[1]: %p\n", &p[1]);
+    printf("Value of p + 1: %p\n", p + 1);
+    return 0;
 }

fundamentals2/ptr.c

@@ -4,21 +4,20 @@
 #include <stdlib.h>
 
 typedef struct {
-	char name[22];
-	unsigned int age;
-	char house[15];
+    char name[22];
+    unsigned int age;
+    char house[15];
 } student;
 
 student array_of_students[10];
-int main(int argc, char *argv[]) {
-	student eddie = { "Eddie", 29, "Maxwell Dworkin" };
+int main(int argc, char* argv[]) {
+    student eddie = { "Eddie", 29, "Maxwell Dworkin" };
 
-	(void)argc;
-	(void)argv;
+    (void) argc, (void) argv;
 
-	array_of_students[5] = eddie;
-	printf("Where is the array? %p\n", array_of_students);
-	printf("Where is Eddie? %p\n", &eddie);
-	printf("How large is a struct student???\n");
-	return 0;
+    array_of_students[5] = eddie;
+    printf("Where is the array? %p\n", array_of_students);
+    printf("Where is Eddie? %p\n", &eddie);
+    printf("How large is a struct student???\n");
+    return 0;
 }

fundamentals2/struct.c

@@ -0,0 +1,4 @@
+struct
+ptr
+addrspace
+union

fundamentals2/union.c

@@ -0,0 +1,19 @@
+PROGRAMS = ptr struct union addrspace
+
+all: $(PROGRAMS)
+
+ALLPROGRAMS = $(PROGRAMS)
+
+include ../common/rules.mk
+
+%.o: %.c $(BUILDSTAMP)
+	$(CC) $(CPPFLAGS) $(CFLAGS) $(DEPCFLAGS) $(O) -o $@ -c $<
+
+%: %.o
+	$(CC) $(CFLAGS) $(O) -o $@ $^
+
+clean:
+	rm -f $(ALLPROGRAMS) *.o
+	rm -rf $(DEPSDIR) *.dSYM
+
+.PHONY: all clean

fundamentals3/.gitignore

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+char global_ch = 'B';
+const char const_global_ch = 'C';
+
+int main(int argc, char* argv[]) {
+    (void) argc, (void) argv;
+
+    char local_ch = 'A';
+    const char const_local_ch = 'E';
+    char *heap_ch = (char*) malloc(1);
+    *heap_ch = 'D';
+
+    printf("Address of a global variable\t\t%p\n", &global_ch);
+    printf("Address of a const global variable\t%p\n", &const_global_ch);
+    printf("Address of a local variable\t\t%p\n", &local_ch);
+    printf("Address of a const local variable\t%p\n", &const_local_ch);
+    printf("Address of a heap variable\t\t%p\n", heap_ch);
+    printf("Address of main\t\t\t\t%p\n", main);
+    return 0;
+}

fundamentals3/GNUmakefile

@@ -0,0 +1,18 @@
+// Data Representation examples; addresses of shorts
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int array[10];
+
+int main(int argc, char* argv[]) {
+    (void) argc, (void) argv;
+
+    int* p = &array[0];
+
+    printf("Address of array: %p\n", array);
+    printf("Value of p: %p\n", p);
+    printf("Value of &p[1]: %p\n", &p[1]);
+    printf("Value of p + 1: %p\n", p + 1);
+    return 0;
+}

fundamentals3/addrspace.c

@@ -0,0 +1,23 @@
+// Data Representation examples
+
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct {
+    char name[22];
+    unsigned int age;
+    char house[15];
+} student;
+
+student array_of_students[10];
+int main(int argc, char* argv[]) {
+    student eddie = { "Eddie", 29, "Maxwell Dworkin" };
+
+    (void) argc, (void) argv;
+
+    array_of_students[5] = eddie;
+    printf("Where is the array? %p\n", array_of_students);
+    printf("Where is Eddie? %p\n", &eddie);
+    printf("How large is a struct student???\n");
+    return 0;
+}