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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
It can be quite helpful to use strings or characters while tackling logical programming difficulties. Characters in strings are 1-byte data types that can store symbols from ASCII values. Strings are collections of characters. The symbols could be special characters, numerals from the numeric system, or letters from the English alphabet. This article will teach you how to use C++ to determine whether a character is a numeric character or not. Checking string is numeric or not To check whether the given string is numeric or not, we need to check each character in it is a digit or not. ... Read More
Using strings or characters is sometimes very useful while solving some logical programming problems. Strings are a collection of characters and characters are 1-byte datatype to hold symbols from ASCII values. The symbols can be letters from English alphabets, numeric digits, or special characters. In this article, we shall learn how to check whether a character is a letter in English an alphabet or not using C++. Checking isalpha() function To check whether a number is an alphabet or not, we can use the isalpha() function from the ctype.h header file. This takes a character as input and returns true ... Read More
In modern programming languages we work with signed numbers and unsigned numbers also. For signed numbers the numbers can be positive or negative or zero. To represent negative numbers, the systems store the numbers in 2’s complement method. In this article we shall discuss how to determine a given number is positive, or negative in C++. Checking using if-else conditions The basic sign checking can be done by using if else conditions. The syntax for the if-else conditions is like below − Syntax if { perform action when condition is true } else { ... Read More
Gray codes or reflected binary codes are a special type of binary representation of numbers in which two successive values differ in only one bit. For example, the binary equivalent of 1 and 2 are 01 and 10, here two bits are changing. But in gray code, the 1 is 01 and 2 is 11, only one bit is changing. In this article, we will see how we can convert a given binary number into its gray code equivalent by using recursion in C++. Passing number as a decimal integer In the first example, we are providing the number in ... Read More
Any programming language that uses functions has code that is simpler, more modular, and simpler to change while being debugged. Functions are a remarkably beneficial component in a modular piece of code. A function's ability to accept arguments and output results. It is not necessarily necessary for a function to accept inputs and to always produce a result. There are numerous instances where functions only take a few inputs and don't return anything. does not always respond and will not tolerate disputes. This article will explain how to create C++ programmes that use functions, which accept a number of arguments ... Read More
Functions in functional programming are used to create modular codes. We construct submodules in many applications to make our code simple to write, simple to debug, and also efficient by avoiding writing needless code repeatedly. Functions have a role in achieving these traits. Functions frequently take arguments and produce a result. It occasionally might not accept any arguments but still produce something. There are several rare circumstances when functions take a few inputs but don't return anything. This course will discuss C++ methods that accept arguments but nothing is returned. Function with arguments but no return value To define a ... Read More
Functions in programming languages are used to make codes modular. In many applications, we create sub-modules to make our code easy to write, easy to debug, and also optimized by rejecting unnecessary code again and again. To achieve these features, functions come into the picture. In many cases, functions take arguments and return something. Sometimes it may not take any argument but returns something. Some special cases are also there when the functions do not take any arguments and do not return anything. In this tutorial, we shall cover such functions without argument and return value in C++. Function without ... Read More
Recursion is a technique where we call a function from the same function itself. There must be some base or terminating condition to end the recursive call. Recursive procedures are very much helpful to perform complex iterative solution with fewer codes and easier solution approach through sub-operation finding. In this article we shall discuss a recursive approach to perform product (multiplication) between two numbers in C++. Initially we will understand the basic principle, the syntax for recursive function call, the algorithm and the source code. Multiplication using Recursion In high-level languages, there is the multiplication operators available to directly perform ... Read More
Static typing is used in the C++. Variables must be defined with a specific type in order to write programmes. Inputs from the console or files must occasionally be read. In this case, the programme is given the string data. Special operations are necessary to transform them into other datatypes. This article will provide the C++ method for converting strings to floating point integers. A couple different methods can be used to accomplish this. Explore each of them separately. Using stringstream in C++ Streams are a fantastic tool in C++. Filestreams, standard input/output streams, etc. are examples of these streams. ... Read More