C++ Basics: Input/Output and Libraries

It is used to specify the global scope, ensuring that the global variable is accessed.

Because double is a more precise data type and can represent a wider range of values.

By appending f to the literal value, e.g. 22.89f.

<p>To provide an alternative name for an existing variable.</p> Signup and view all the answers

<p>Typecasting is a way to change the data type of a variable, and it is used to explicitly convert a value from one type to another.</p> Signup and view all the answers

<p>The fractional part of the <code>float</code> value is truncated, resulting in an integer value.</p> Signup and view all the answers

<p>Yes, through the use of reference variables, which provide alternative names for existing variables.</p> Signup and view all the answers

<p>It is used to declare a reference variable, indicating that it is an alias for an existing variable.</p> Signup and view all the answers

<p>By the presence of the <code>f</code> suffix, which indicates a <code>float</code> literal, whereas the absence of the suffix implies a <code>double</code> literal.</p> Signup and view all the answers

<p>It is used to indicate that the literal value is a <code>long double</code>, which has a larger range and precision than <code>double</code>.</p> Signup and view all the answers