cplusplus:pointers_1_slides
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| cplusplus:pointers_1_slides [2021/10/19 19:20] – [Pointers 1 slides] mithat | cplusplus:pointers_1_slides [2021/10/19 19:29] (current) – [Example] mithat | ||
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| Line 61: | Line 61: | ||
| ===== Pointer syntax basics ===== | ===== Pointer syntax basics ===== | ||
| - | ===== Declaration | + | ===== Pointer declaration |
| * '' | * '' | ||
| * Type of data being pointed to must also be indicated. | * Type of data being pointed to must also be indicated. | ||
| Line 78: | Line 78: | ||
| </ | </ | ||
| - | ===== Declaration | + | ===== Pointer declaration |
| * You can declare more than one pointer variable at a time: | * You can declare more than one pointer variable at a time: | ||
| Line 100: | Line 100: | ||
| * Most environments show base addresses as [[http:// | * Most environments show base addresses as [[http:// | ||
| - | ===== Assignment | + | ===== Pointer assignment |
| * Declare an integer variable '' | * Declare an integer variable '' | ||
| Line 111: | Line 111: | ||
| {{: | {{: | ||
| - | ===== Assignment | + | ===== Pointer assignment |
| * Declare an integer variable '' | * Declare an integer variable '' | ||
| Line 130: | Line 130: | ||
| - | ===== Assignment | + | ===== Pointer assignment |
| - | * Chaning | + | * Changing |
| <code cpp> | <code cpp> | ||
| Line 143: | Line 143: | ||
| </ | </ | ||
| - | ===== Initialization | + | ===== Pinter initialization |
| * Local pointer variables in C++ are not automatically initialized. | * Local pointer variables in C++ are not automatically initialized. | ||
| * Uninitialized pointers point to arbitrary memory. //Very dangerous.// | * Uninitialized pointers point to arbitrary memory. //Very dangerous.// | ||
| Line 165: | Line 165: | ||
| * '' | * '' | ||
| - | ===== Pointer operators | + | ===== Operators for pointers |
| - | * **address operator** ''&'' | + | * **address operator** ''&'' |
| - | * **indirection** or **dereferencing operator** '' | + | * **indirection** or **dereferencing operator** '' |
| ===== Indirection/ | ===== Indirection/ | ||
| Line 221: | Line 221: | ||
| << | << | ||
| << | << | ||
| - | |||
| cout << endl; | cout << endl; | ||
| Line 232: | Line 231: | ||
| << | << | ||
| << | << | ||
| + | |||
| return 0; | return 0; | ||
| } | } | ||
| </ | </ | ||
cplusplus/pointers_1_slides.1634671215.txt.gz · Last modified: 2021/10/19 19:20 by mithat