Can you explain what enable_if is in C++?
Sure! enable_if
is a template metaprogramming utility that allows you to conditionally enable or disable function templates based on certain conditions.
Can you give me an example of how to use enable_if?
Absolutely! Here's a simple example: you can use enable_if
to create a function that only accepts integral types.
How does it work with function overloading?
It helps in function overloading by allowing you to define multiple versions of a function, but only the one that meets the condition will be available.
Are there any limitations to using enable_if?
Yes, it can make code harder to read and understand, especially for complex conditions. It's best used judiciously.
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