Solution: Implement KeyPair Class Using <requires> Clause

Get an overview of how to implement the KeyPair class using the <requires> clause.

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Solution

On line 8, we create a simple concept Number that is applied to the typename T and U, so T and U can pass numeric values only. In the main function, the KeyPair class is tested on int and double. We can test on float as well. We can uncomment line 31 and compile the code to see the error message for a string type.

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