Differences

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--- cplusplus:pointers_3 [2014/04/29 20:54] – [Walking down an array] mithat
+++ cplusplus:pointers_3 [2016/03/05 23:27] – [Pointers 3] mithat
@@ Line 42: / Line 42: @@
 <file cpp pointer-math.cpp>
+/** Pointer arithmetic. */
 #include <iostream>
 using namespace std;
@@ Line 66: / Line 67: @@
 <file cpp subtracting-pointers.cpp>
+/** Subtracting pointers */
 #include <iostream>
 using namespace std;
@@ Line 83: / Line 85: @@
 ==== Walking down an array ====
-A common technique used to visit every element in an array is to //walking down an array// with a pointer:
+A common technique used to visit every element in an array is to //walk down an array// with a pointer:
 <file cpp walk-down-array.cpp>
+/** Walking down an array. */
 #include <iostream>
 using namespace std;
@@ Line 94: / Line 97: @@
     int *vPtr = v;
-    for(int i = 0; i < 5; i++)
+    for (int i = 0; i < 5; i++)
     {
         cout << *vPtr << endl;
@@ Line 107: / Line 110: @@
 <file cpp walk-null-terminated.cpp>
+/** Walking down a null-terminated array. */
 #include <iostream>
 using namespace std;
@@ Line 146: / Line 150: @@
 ^ Operation                                                        ^ Example ^
-|<code>{pointer}++</code>                                          |<code cpp>valptr++;  // points at 7</code> |
+|Increment <code>pointer++</code>                                          |<code cpp>valptr++;  // points at 7</code> |
-|<code>{pointer}--</code>                                          |<code cpp>valptr--;  // now points at 4</code> |
+|Decrement <code>pointer--</code>                                          |<code cpp>valptr--;  // now points at 4</code> |
-|<code>{pointer} + {int}</code>and<code>{pointer} - {int}</code>   |<code cpp>cout << *(valptr + 2); // prints 11</code> |
+|Arithmetic <code>pointer + int</code> and <code>pointer - int</code> |<code cpp>cout << *(valptr + 2); // prints 11</code> |
-|<code>{pointer} += {int}</code>and<code>{pointer} -= {int}</code> |<code cpp>valptr = vals; // points at 4
+|Compound assignment <code>pointer += int</code>and<code>pointer -= int</code> |<code cpp>valptr = vals; // points at 4
 valptr += 2;   // points at 11</code> |
-|<code>{pointer} - {pointer}</code>                                |<code cpp>cout << valptr - val; // number of ints between valptr and val</code> |
+|Pointer subtraction <code>pointer - pointer</code>                                |<code cpp>cout << valptr - val; // # of ints between valptr and val</code> |