did the assignment

assignment7.txt

@@ -0,0 +1,16 @@
+1)
+    ++*p increments the value that p is pointing to
+    *p++ gets the value that p is pointing to, then increments p
+    *++p increments p, then returns the new value that p is pointing at
+2) yes?
+3) You can pass by reference
+4.1) char *
+4.2) 121
+4.3) 1
+4.4) 10
+4.5) int *
+4.6) 12
+4.7) int **
+4.8) char *
+4.9) invalid: we never learned about pointers to functions
+4.10) 6

reverse.c

@@ -0,0 +1,31 @@
+/* Harry Brickner
+ * Given a string, will print out the reversed string (minus the newline character at the end, if there is one.) */
+#include <stdio.h>
+#include <string.h>
+
+void swap (char* a, char* b){
+	char temp = *a;
+	*a = *b;
+	*b = temp;
+}
+
+void reverse(char str[], int length){
+	if(str[length - 1] == '\n') str[--length] = '\0';
+	for(int i = 0; i < length / 2; i++){
+		swap(&str[i], &str[length - i - 1]);
+	}
+}
+
+void driver(){
+	int length = 50;
+	char input[50];
+	printf("Please input a string\n");
+	fgets(input, length, stdin);
+	reverse(input, strlen(input));
+	printf("Reversed string is:\"%s\"\n", input);
+}
+
+int main(){
+	driver();
+	return 0;
+}