Arrays, parameter passing, pointers and dynamic allocation. - ELIS

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Dynamic Deallocation double *pi = new double(3.14159); int *num = new int(); *num = 9; int *grades = new int[40]; //finds space for 40 integers, returns address of first element to int pointer grades delete pi; delete num; delete [] grades; //NEED [] when deleting an array! 70
Dynamic Deallocation int *grades = new int[40]; //finds space for 40 integers, returns address of first element to int pointer grades delete [] grades; //NEED [] when deleting an array! grades = NULL; //good to null so no dangling pointers S You MUST pair every new with a delete S Not releasing dynamically allocated memory back to the heap can cause memory leaks. This is BAD. 71
Page 1 and 2:
Computer Programming C++ Howest, Fa
Page 3 and 4:
Whole Course S Intro to C++ program
Page 5 and 6:
Application for Final Project 5
Page 7 and 8:
S Books: Additional Info S Aan de s
Page 9 and 10:
Microsoft Visual Studio S General I
Page 11 and 12:
Similarities & Differences S Look a
Page 13 and 14:
S Example: int boxVolume(int side)
Page 15 and 16:
C++ Compilation S Usually include f
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S Storage-class specifiers S auto S
Page 19 and 20: S Storage-class specifiers S Automa
Page 21 and 22: S Function call stack Stacks S Stac
Page 23 and 24: S 2 types S Pass-by-value S Pass-by
Page 25 and 26: Pass-by-value int squareByValue(int
Page 27 and 28: Pass-by-reference S void myFunction
Page 29 and 30: Returning References S Returning re
Page 31 and 32: S Indexed data structure S Starts a
Page 33 and 34: S Loop S Initializer list Array Ini
Page 35 and 36: S Loop S Initializer list Array Ini
Page 37 and 38: Differences from Java S No automati
Page 39 and 40: S char string1[] = “hello”; Cha
Page 41 and 42: S char string2[20]; S cin >> string
Page 43 and 44: Passing Arrays to Functions S Array
Page 45 and 46: Multidimensional Arrays S int array
Page 47 and 48: Passing Multi-D Arrays void printAr
Page 49 and 50: typedef S typedef is a keyword that
Page 51 and 52: S Mysterious, but very useful. Poin
Page 53 and 54: S int *countPtr, count; S count = 7
Page 55 and 56: S Differences Pointers vs. Referenc
Page 57 and 58: Arrays are Just Pointers int arrayN
Page 59 and 60: Parameter Arithmetic & Arrays S int
Page 61 and 62: Parameter Arithmetic & Arrays S int
Page 63 and 64: Arrays and Pointers void copy1(char
Page 65 and 66: #include using std::vector; Vector
Page 67 and 68: #include using std::vector; Vector
Page 69: Dynamic Allocation double *pi = new
Page 73 and 74: array2d Pointers to Pointers int **
Page 75 and 76: const with Pointers and Data S 4 ty
Page 77 and 78: Nonconst Ptr, Const Data void print
Page 79 and 80: Const Ptr, Nonconst Data void print
Page 81 and 82: Const Ptr, Const Data int main() {
Page 83 and 84: const_cast< T > (v) S Adds or remov
Page 85 and 86: Function Templates S Template templ
Page 87: Compiling with g++ S g++ basic.cpp
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Arrays, parameter passing, pointers and dynamic allocation. - ELIS

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