rustHow do I print the type of a variable in Rust?

You can print the type of a variable in Rust using the std::any::type_name function. This function takes a reference to a variable and returns a &str containing the type name.

Example code

let x = 5;
println!("x is of type {}", std::any::type_name::<decltype(x)>());

Output example

x is of type i32

Code explanation

• let x = 5;: This declares a variable x with the value 5.
• std::any::type_name: This is the function used to print the type of a variable.
• <decltype(x)>(): This is a type parameter that specifies the type of the variable x.
• println!("x is of type {}", ...): This prints the type of the variable x to the console.

Helpful links

• std::any::type_name

Edit this code on GitHub