How to Take std::cin Input with Spaces?

In C++, std::cin is used to accept the input from the standard input device. By default, the delimiter used by std::cin to separate input is a whitespace. In this article, we will learn how to take std::cin input with spaces in C++.

Example:

Input: Hey! Geek Welcome to GfG //input with spaces
Output: Input Entered: Hey! Geek Welcome to GfG

std::cin Input with Spaces in C++

To take std::cin input with spaces we need to customize the behavior of the standard input stream by treating the newline character ('\n') as a delimiter in place of a space. To achieve this use the below approach:

Approach:

• Define a custom locale facet that modifies the character classification table used by the locale to alter how characters are interpreted by the input stream.
• Inside the custom locale change the classification of the newline character ('\n') to be considered as a space character.
• Finally, apply the custom locale by using cin.imbue() to set the locale of the std::cin with a new locale.

C++ Program to Take std::cin Input with Spaces

The below program demonstrates how we can take std::cin input with spaces in C++.

Output

Enter Input with Spaces: 
Hey! Geek Welcome to GfG 
Input Entered: Hey! Geek Welcome to GfG