Function read_input

pub fn read_input<T: FromStr>(prompt: &str, err: &str) -> T

Reads input from the standard input stream and attempts to parse it into the specified type. Continuously prompts for input until a valid input is entered.

Arguments

• prompt - A string slice that holds the text to be displayed as a prompt before reading input.
• err - A string slice that holds the text to be displayed as an error message if parsing fails.

Returns

Returns the parsed value of type T if parsing is successful. If parsing fails, the function will continue to prompt for input and display the error message until a valid input is entered.

Example

let age: u32 = read_input("Enter your age: ", "Invalid input. Please enter a valid age.");
println!("Your age is {}", age);

Panics

The function will panic if flushing stdout or reading from stdin fails.