From f38ae6d885eeaeb368b119d110c39080be18a5c4 Mon Sep 17 00:00:00 2001
From: Olivierlu1 <180256@hkis.edu.hk>
Date: Mon, 11 Jul 2016 00:13:16 -0400
Subject: [PATCH] Assignment 7

---
 assignment7.txt | 18 ++++++++++++++++++
 reverse.c       | 18 ++++++++++++++++++
 stringf.c       | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 assignment7.txt
 create mode 100644 reverse.c
 create mode 100644 stringf.c

diff --git a/assignment7.txt b/assignment7.txt
new file mode 100644
index 0000000..4397543
--- /dev/null
+++ b/assignment7.txt
@@ -0,0 +1,18 @@
+Olivier Gabison
+
+1. ++*p dereferences the value that the p variable is pointing to and then increments it. While *p++ increments the pointer,
+and then dereferences it. Finally, *++p first increments the pointer and then dereferences it.
+
+2. No, order of precedence is not done through left to right order.
+
+3. I think the best uses of pointers is passing by reference and dynamic starting sizes on arrays.
+
+4.1  char *, its a string, and char[] has '\0' at the end of it.
+4.3 1 - the ASCII value of '\0' is 0. Therefore, 0 = 0, which returns 1;
+4.4 int, dereference of pointer a
+4.5 int *, it creates a pointer that is used upon a[0]
+4.6 int, dereference of pointer p
+4.7 int **, creates a pointer for pointer p
+4.8 char *, derefernce of the double pointer 'argv'
+4.9 This does not work as you cannot cast a pointer to a function
+4.10 5 (only when string.h is included)
diff --git a/reverse.c b/reverse.c
new file mode 100644
index 0000000..5cbaf40
--- /dev/null
+++ b/reverse.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+
+int main(){
+
+  char word[100] = "HELLOHH"; //THIS IS THE WORD THAT WILL BE REVERSED
+  char *Start = word - 1;
+  char *End = Start + strlen(word);
+  int i;
+  for (i=0; *Start!=*End; i++) {
+  	printf("%c",*End);
+  	End--;
+  }
+  printf("\n");
+
+
+
+  return 0;
+}
diff --git a/stringf.c b/stringf.c
new file mode 100644
index 0000000..6164360
--- /dev/null
+++ b/stringf.c
@@ -0,0 +1,48 @@
+#include <stdio.h>
+
+int strcmp(char *a, char *b){
+  if(*a > *b){
+    return 1;
+  } else {
+    if (*a < *b){
+      return -1;
+    } else {
+      a++;
+      b++;
+      return strcmp(a, b);
+    }
+  }
+}
+
+char *strcat(char *a, char *b){
+  char *answer[100];
+  int i;
+
+  for(i = 0; i < 100; i++){
+    if(*a == '\0'){
+      break;
+    }
+    answer[i] = *a;
+    a++;
+  }
+
+  for (int j = i; i < 100; j++){
+    if(*b == '\0'){
+      break;
+    }
+    answer[j] = *b;
+    b++;
+  }
+
+  return answer;
+}
+
+int main(){
+
+  char s1[] = "Hello";
+  char s2[] = "Hallo";
+
+  printf("%s", strcat(s1,s2));
+
+  return 0;
+}