Differences

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--- notes:data [2018/08/23 09:41] – [URLs] cmerola2
+++ notes:data [2018/10/24 23:39] (current) – [URLs] ktodd3
@@ Line 10: / Line 10: @@
 ======URLs======
 Binky Pointer Video:
-https://www.youtube.com/watch?v=f-pJlnpkLp0
+[[https://www.youtube.com/watch?v=f-pJlnpkLp0|Binky Pointer Video]]
+[[https://www.learn-c.org/en/Linked_lists|Basic linked list tutorial ]]
 ======Notes======
+====Pointers:====
 char x = 0;
@@ Line 33: / Line 38: @@
 xcoffee
-   -Make y = deadbeef without using "deadbeef" by using the address (&)
+Access an address with &
+Make y = deadbeef without using "deadbeef" by using the address (&) my man.
    y = &x
-   Now, y's data is the address of x
+Now, y's data is the address of x.
-   x contains the data '0'
+x contains the data '0'
+If we do this:
     |0|
     ---
@@ Line 50: / Line 60: @@
    *y = 13;
-    Now:
+Then:
     |13|
     ----
@@ Line 59: / Line 69: @@
        y
 xcoffee <- address
+x is now 13 because y is x's address, and you 'pointed' 13 to the address. Ill, dog.
+Double pointers are arrays or whatever
+    |          |
+    ------------
+    z
+    signed char **z = NULL;
+So we're gonna give this some garbage
+    |0xcoffee|
+    ----------
+    z
+xc05fefe
+And do nothing with it because we kind of just stopped I think.
+Memory addresses are 8 bytes on 64 bit linux systems.
+bytes on 32 bit linux systems.
 ======Other======