C++ || How To Read An Entire File Into A String & Write A String To A File Using C++

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The following is a module with functions which demonstrates how to write a string to a file and read an entire file to a string using C++.

The functions demonstrated on this page uses fstream to read and write data to and from a file.

1. Read All Text

The example below demonstrates the use of ‘Utils::readAllText‘ to open a text file, read all the text in the file into a string, and then close the file.

2. Write All Text

The example below demonstrates the use of ‘Utils::writeAllText‘ to create a new file, write a specified string to the file, and then close the file. If the target file already exists, it is overwritten.

3. Utils Namespace

The following is the Utils Namespace. Include this in your project to start using!

4. More Examples

Below are more examples demonstrating the use of the ‘Utils‘ Namespace. Don’t forget to include the module when running the examples!

The highlighted lines are sections of interest to look out for.

The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.

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