Added on 07/10/23

Author: Priyanshu-Ganatra

CharArrayPointers.cpp

@@ -0,0 +1,11 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int main(){
+    char str[10] = "abcd";
+    char *cptr = str; // same as char *cptr = &str[0], this works as str is char* type
+    cout << cptr << endl;
+    // char (*ch)[10] = &str; // char* ch = &str will give error as &str is char(*)[10] type
+    // cout << *ch << endl;
+    return 0;
+}

DanglingPointer.cpp

@@ -0,0 +1,11 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int *ptr = (int *)malloc(sizeof(int));
+    free(ptr); // Now 'ptr' is a dangling pointer
+    *ptr = 10; // Accessing memory through a dangling pointer is undefined behavior
+    cout  << *ptr << endl; 
+    return 0;
+}

WildPointer.cpp

@@ -0,0 +1,10 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int *ptr;  // 'ptr' is a wild pointer because it is uninitialized
+    *ptr = 10; // Accessing memory through a wild pointer is undefined behavior
+    cout << *ptr << endl; // doesn't print anything as the memory is not allocated
+    return 0;
+}