Prelab Complete

Labs/Lab08/Makefile

+CC=gcc
+CFLAGS=-Wall -Werror
+all: strnode_test
+strnode_test: strnode.o strnode_test.o strnode.h
+clean:
+	rm -f strnode_test *.o

Labs/Lab08/strnode.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "strnode.h"
+struct strnode *strnode_create(char* s, int length){
+	struct strnode node;
+	struct strnode* address = malloc(sizeof(node));
+	strcpy((*address).str, s);
+	(*address).length = length;
+	(*address).next = 0;
+	return address;
+}
+
+

Labs/Lab08/strnode.h

+#ifndef STRNODE_H_
+#define STRNODE_H_
+
+struct strnode{
+	char str[101];
+	int length;
+	struct strnode *next;
+};
+
+struct strnode *strnode_create(char *s, int length);
+
+#endif
+

Labs/Lab08/strnode_test.c

+#include <stdio.h>
+#include "strnode.h"
+
+// global variables (data segment)
+
+struct strnode *n1, *n2, *n3, *p;
+
+//------------ MY MAIN FUNCTION --------------------
+
+int main(int argc, char *argv[]) {
+
+  // create strnodes
+  n1 = strnode_create("hello", 5);
+  n2 = strnode_create("there", 5);
+  n3 = strnode_create("prof", 4);
+
+  printf("strnode_test running...\n");
+
+  // manually "link" the nodes together.
+  n1->next = n2;
+  n2->next = n3;
+  n3->next = NULL;
+
+  // p points to node n1 initially
+  p = n1;
+
+  while (p != NULL) {
+    // Complete this line to print the current node's string and   
+    // the stored length (do not use strlen!)
+    printf("str: %s - length: %d\n",  (*p).str, (*p).length);
+
+    // TODO: add code to move p to point to next node
+    // until you add this line, this program will have an infinite loop.
+	p = (*p).next; 
+  }
+
+  return 0;
+}
+