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Learn How To Use Booleans In C++

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In programming, there are some of the parameters which have two values, as same as 0 and 1 bits in our computers. For these 1 and 0; Yes and No, On and Off, true and false, Enabled or Disabled, etc.. variables there are Boolean operands. We use Booleans, these kinds of switches to check most of the parameters, components, variables in classes, etc. bool data type is used C++ for these variables and it can take the values 1 (true) or 0 (false

Here is an example to use Booleans;

Boolean expressions are used in comparison and it is a C++ expression that returns a boolean value 1 (true) or 0 (false). We can check a boolean variable if it is true or false like this,

We can use comparison operators with if clauses, such as the equal to (==) operator to find out if an expression (or a variable) is true, also that means they are equal.

Here a==b term is a Boolean and return true or false, if clause checks if it is true or false and if it is true that means it is equal to. Same here, we can use greater than or lower than as below,

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About author

Dr. Yilmaz Yoru has 33+ years of coding with more than 30+ programming languages, mostly C++ on Windows, Android, Mac-OS, iOS, Linux, and some other operating systems. He was born in 1974, Eskisehir-Turkey, started coding in college and graduated from the department of Mechanical Engineering of Eskisehir Osmangazi University in 1997. He worked as a research assistant at the same university for more than 10 years. He received his MSc and PhD degrees from the same department at the same university. Since 2012, he is the founder and CEO of Esenja LLC Company. He has married and he is a father of a son. Some of his interests are Programming, Thermodynamics, Fluid Mechanics, and Artificial Intelligence, 2D & 3D Designs, and high-end innovations.
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