C++ Articles - Page 686 of 719

The isspace() function is a predefined function in ctype.h. It specifies whether the argument is a whitespace character or not. Some of the whitespace characters are space, horizontal tab, vertical tab etc.A program that implements isspace() function by counting the number of spaces in a string is given as follows −Example Live Demo#include #include using namespace std; int main() {    char str[] = "Coding is fun";    int i, count = 0;    for(i=0; str[i]!='\0';i++) {       if(isspace(str[i]))       count++;    }    cout

Bitwise operators are used for representing binary integers, where the operator directly performs operations on the individual bits of integer values. To perform an addition operation using bitwise operators, use operators like AND, XOR, and NOT. The OR operator cannot perform addition on its own because, 1 | 1 results in 1, but we need 2 as the output. Therefore, you can use the other three operators to implement the logic of addition. You can see the tabular representation of biwise operators by taking binary bits as 0 and 1. ... Read More

Random numbers can be generated in C++ using the rand() function. The srand() function seeds the random number generator that is used by rand().A program that uses rand() and srand() is given as follows −Example Live Demo#include #include #include using namespace std; int main() {    srand(1);    for(int i=0; i

Lexicographical order denotes the way the words are ordered in a list, based on alphabetical order according to their alphabets. For example: List of words: Harry Adam Sam Lexicographical order of words: Adam Harry Sam Sorting String Based on Lexicographical Order To implement the string in lexicographical order, use the two different iterators: one to point at the current string, and the other to compare it with the next strings in the array. If the first iterator points to a string that is greater than the one pointed to by the second iterator, then we swap ... Read More

Complex numbers are numbers that are expressed as a+bi, where i is an imaginary number and a and b, are real numbers. Some of the example of complex numbers are 2 + 5i, 3 - 9i, 8 + 2i, etc. How to add complex number? Here, we will explain how to add two complex numbers. Let us assume we have two complex numbers, Z1 and Z2. // a and b are the real and imaginary parts of Z1 Z1 = a + bi // c and d are the real and imaginary parts of Z2 Z2 = c + ... Read More

A structure is a collection of items of different data types. It is very useful in creating complex data structures with different data type records. A structure is defined with the struct keyword. An example of a structure is as follows: struct DistanceFI { int feet; int inch; }; The above structure defines a distance in the form of feet and inches. Example of Adding Two Distances (inch-feet) Using Structure The program uses a structure named DistanceFI to represent a distance in terms of feet and inches. It creates two different ... Read More

Variable length arrays can have a size as required by the user i.e they can have a variable size. A Variable−Length Array (VLA) is an array whose length is determined at runtime (not compile-time). Variable Length Array Using Vector A vector is defined by the resizable array that is part of data structures and is used to store multiple elements from the same data type. A variable length array can be created using the Vector. Syntax Following are the syntaxes that uses to modify the size dynamically using vector − // inserting the array element push_back() and, // ... Read More

A parallel array is a structure that contains multiple arrays. Each of these arrays are of the same size and the array elements are related to each other. All the elements in a parallel array represent a common entity. Here, we provide the basic example to understand the parallel array in C++ − employee_name = { Harry, Sally, Mark, Frank, Judy } employee_salary = {10000, 5000, 20000, 12000, 5000} Here, The name and salary of 5 different employees is stored in two different arrays. Example of Parallel Arrays This is an implementation of a parallel array ... Read More

In a computer system, the binary number is expressed in the binary numeral system while the octal number is in the octal numeral system. The binary number is in base 2 while the octal number is in base 8. Here, we provide the tabular data to understand binary numbers and their corresponding octal numbers as follows: Octal Number ... Read More

In a computer system, the binary number is expressed in the binary numeral system while the octal number is in the octal numeral system. The binary number is in base 2 while the octal number is in base 8. Examples of binary numbers and their corresponding octal numbers are as follows: Binary Number ... Read More