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Concept explainers
Pointer:
Pointer will allow the user to indirectly access and manipulate the variable data contents. A pointer variable will hold the address of the data contents. If an asterisk “*” operator is present before the variable then that variable is referred as pointer variable.
Consider the following statement:
//definition of pointer variable
int *ptrvar;
Here the variable “ptrvar” is defined to a pointer variable of integer data type. So, it can store the address of an integer variable.
Pointer to constant:
When an address of a constant item is passed to a pointer such that no modification can be made to that variables pointer to constants can be used.
Example:
//definition of pointer to constant variable
const int *ptr;
Explanation:
In the above definition, the variable “ptr” is declared as constant and any change made will not be accepted by the compiler.
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Chapter 9 Solutions
Starting Out with C++: From Control Structures through Objects, Brief Version plus MyLab Programming with Pearson eText - Access Card Package (8th Edition)
- Which aggregating operations on struct variables are permissible but not on array variables?arrow_forwardint func(int a, int b) { return (aarrow_forwardWhich aggregation operations are allowed for struct variables but not for array variables?arrow_forwardGiven the following struct definition; USE C PROGRAM #define MAX 20 typedef struct{ int items[MAX]; int count;}Array;Define the functions:void addItem(Array *a, int item); // adds item to the arrayvoid printArray(Array a); // displays elements of itemsint isFull(Array a); //returns 1 if the items is full; 0 if otherwiseint isEmpty(Array a); //returns 1 if the items is empty; 0 if otherwisearrow_forward#include void main(void) { int c =2 ^3; cout<< c; }arrow_forwardİN C LANGUAGE Typedef struct Complex { Double a; Double b; } COMP_t, *COMP; write a function which finds and returns the position of the complex number whose absolute value is maximum in a two dimensional array of complex numbers.Absolute value of z=a+bi is |z|=(a^2+b^2)^1/2arrow_forwardDefine array subscript operator.arrow_forwardC++ Coding: ArraysTrue and False Code function definitions for eoNum() and output(): Both eoNum() and output() are recursive functions. output() stores the even/odd value in an array. Store 0 if the element in the data array is even and store 1 if the element in the data array is odd. eoNum() displays all the values in an array to the console.arrow_forwardin c++ find the largest and smallest number of any array.arrow_forwardin c language !! typedef struct {long restaurant_id;char restaurant_name[10];char description[120];double rate;char cuisine[30]; opening_year;long capacity;char city[30];char address[60];char owner[30];} RECORD_t, *RECORD; RECdelete (unsigned long restaurant_id, RECORD *restaurant_array, unsigned long *p_size){int rec;int index;// index <- find the index of the RECORD with given restaurant_id in restaurant_array ????? (I DIDNT)if (index is valid)rec=restaurant_array[index];elserec=NULL;return rec;}arrow_forwardIn the C programming language, if all function prototypes are listed at the top of your code, outside and above all functions, you do not need to worry about the order of the function definitions within the code. True Falsearrow_forwardHuffman code // C program for Huffman Coding #include<stdio.h> #include<stdlib.h> #define MAX_TREE_HT 100 struct MinHeapNode { char data; unsigned freq; struct MinHeapNode *left, *right; }; struct MinHeap { unsigned size; unsigned capacity; struct MinHeapNode** array; }; struct MinHeapNode* newNode(char data, unsigned freq) { struct MinHeapNode* temp = (struct MinHeapNode*)malloc (sizeof(struct MinHeapNode)); temp->left = temp->right = NULL; temp->data = data; temp->freq = freq; return temp; } struct MinHeap* createMinHeap(unsigned capacity) { struct MinHeap* minHeap = (struct MinHeap*)malloc(sizeof(struct MinHeap)); minHeap->size = 0; minHeap->capacity = capacity; minHeap->array = (struct MinHeapNode**)malloc(minHeap-> capacity * sizeof(struct MinHeapNode*)); return minHeap; } void swapMinHeapNode(struct MinHeapNode** a, struct MinHeapNode** b) { struct MinHeapNode* t = *a; *a = *b;…arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- New Perspectives on HTML5, CSS3, and JavaScriptComputer ScienceISBN:9781305503922Author:Patrick M. CareyPublisher:Cengage LearningC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
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