Found 6415 Questions for C++

C++ Program to Convert Vector to a List

Arnab Chakraborty
Updated on 19-Oct-2022 12:37:53
Vectors in C++ are dynamic arrays that can contain any type of data, it can be user-defined or primitive. Dynamic is in the sense that the size of a vector can increase or decrease according to the operations. Vectors have support for various functions, for which data manipulation is very easy. Lists on the other hand are containers same as vectors, but list implementation is based on doubly linked lists compared to the array implementation of vectors. Lists offer the same constant time operations anywhere in it, that is the main feature of using lists. We take a look at ... Read More

C++ Program to Convert Array to Set (Hashset)

Arnab Chakraborty
Updated on 19-Oct-2022 11:22:52
The array is a data structure that is available in C++ and is used to hold a sequential collection of elements of the same type. An array has a size that is fixed, but can be expanded or shrank if needed. It is important to think of an array as a collection of variables of the same type even though it is used to store a collection of data. Sets, or in this case unordered sets are a container that stores elements of a particular datatype in any order. A hash table is used to implement an unordered_set where keys ... Read More

C++ Program to convert primitive types to objects

Arnab Chakraborty
Updated on 19-Oct-2022 11:21:14
Primitive datatypes in C++ are datatypes that are predefined in the language itself; like int, float, double, etc. Objects are instances of a class, and C++ being an object-oriented language, conversion between primitive data types and objects is necessary. A class serves as a data type's architectural plan. Although this doesn't describe any data specifically, it does specify what the class name signifies, i.e., what an object of the class will look like and what operations may be carried out on it. Conversion between a primitive data type to an object is not defined explicitly in the C++ language compilers, ... Read More

C++ Program to convert double type Variables into int

Arnab Chakraborty
Updated on 19-Oct-2022 11:17:09
In C++, variables of the int type can only hold positive or negative integer values; they cannot hold fractional values. There are float and double values available for this purpose. In order to store fractional numbers with up to seven digits after the decimal point, double datatype was created. Integer to double datatype conversion can either be done automatically by the compiler (known as "implicit" conversion) or explicitly requested by the programmer to the compiler (known as "explicit" conversion). In the sections that follow, we go over the various conversion methods. Implicit Conversion The compiler does implicit type conversions automatically. ... Read More

C++ Program to convert int Variables into double

Arnab Chakraborty
Updated on 19-Oct-2022 11:14:22
Int type variables in C++ are used to contain positive or negarive integer values, but this type is unable to contain fractional values. For that, there are float and double values. Double datatype is specifically designed to hold fractional values upto seven digits after the decimal point. Conversion between integer and double variables can be automatically handled by the compiler, known as ‘implicit’ conversion or can be explicitly triggered by the programmer to the compiler. We discuss the different ways of conversion in the following sections. Implicit Conversion Implicit type conversions are done automatically by the compiler. For this to ... Read More

C++ Program to Convert int Type Variables into String

Arnab Chakraborty
Updated on 19-Oct-2022 11:11:18
Integer type variables in C++ are able to store positive or negative integer values upto a predefined range. String variables can store a sequence of alphabets, numerals, and special characters. There are many use cases where the conversion from int to string is needed. We discuss 3 different methods to convert an integer variable into a string. If we discuss the algorithm, it is pretty straightforward. We take input in an integer variable and then convert it into a string variable. Using to_string function The easiest way in C++ to convert an integer value to a string is using the ... Read More

C++ Program to Convert String Type Variables into Boolean

Arnab Chakraborty
Updated on 19-Oct-2022 11:09:27
In C++, Boolean variables consists of binary data true or false and string variables are a sequence of alphabets, numerals, and special characters. Conversion between string to Boolean isn’t possible natively by the compiler, but there are several ways to perform this conversion. We explore the various ways using which we can convert a string value into a Boolean. If we think about the algorithm , it is quite easy. We take a string value and convert into Boolean using various ways. Algorithm (generalized) Take input in a string variable. Convert the string value (true or false) into a ... Read More

C++ Program to convert Boolean Variables into String

Arnab Chakraborty
Updated on 19-Oct-2022 11:07:37
Boolean variables in C++ can contain only two distinct values, ‘true’ or ‘false’. If we translate these values to string, ‘true’ will be mapped to ‘1’ and ‘false’ will be mapped to ‘0’. Boolean values are mainly used to check if a condition in a program has been met or not. There aren’t direct conversions from Boolean to string like we have seen in conversions from int to long and float to double. But there are needs to translate a Boolean value to string, and we explore different ways to convert a binary Boolean value to a string value. Using ... Read More

C++ Program to Convert int Type Variables to long

Arnab Chakraborty
Updated on 19-Oct-2022 11:01:52
C++ is a statically typed language, and because of that all of its variables require the datatype to be declared beforehand. The datatypes are used to represent which type of value is contained inside a variable. In C++, the variables to contain numerical values are int, long, float, and double. int and long are used to represent integer values, whereas float and double are used to represent fractional values. Both int and long contains integer values with one difference which is, int is of size 4 bytes and long is of size 8 bytes. Conversion of int to long can ... Read More

C++ Program to Convert long Type Variables to int

Arnab Chakraborty
Updated on 19-Oct-2022 11:00:15
C++ has support for various different datatypes to accommodate the different representations and sizes of data. The datatypes that can be used to represent numerical values in C++ are int, long, float, and double. int and long are used to represent integer values, whereas float and double are used to represent fractional values. Both int and long contains integer values with one difference which is, int is of size 4 bytes and long is of size 8 bytes. Conversion of long to int can be done in two different ways, one is through implicit conversion and the another one is ... Read More
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