What are some examples of type deduction in C++?

What are some examples of type deduction in C++?

Type deduction in C++ allows the compiler to automatically deduce the type of a variable. For example, using 'auto' keyword.

Can you give me a specific code example?

Sure! Here's a simple example:

auto x = 5; // x is deduced as int
auto y = 3.14; // y is deduced as double

What about type deduction with functions?

Great question! For functions, you can use 'decltype' to deduce the return type. For example:

auto add(int a, int b) -> decltype(a + b) {
    return a + b;
}

Are there any limitations to type deduction?

Yes, type deduction has some limitations, such as not being able to deduce types from function parameters in certain contexts.