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ToString in std::string - RustSkip to main content

ToString

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std1.98.0

(88d9e12ae 2026-08-18)

ToString

Required Methods

Implementors

In std::string

std::string

Trait ToString Copy item path

1.0.0 Source 
pub trait ToString {
    // Required method
    fn to_string(&self) -> String;
}
Expand description

A trait for converting a value to a String.

This trait is automatically implemented for any type which implements the Display trait. As such, ToString shouldnt be implemented directly: Display should be implemented instead, and you get the ToString implementation for free.

Required Methods

1.0.0 Source

fn to_string(&self) -> String

Converts the given value to a String.

Examples
let i = 5;
let five = String::from("5");

assert_eq!(five, i.to_string());

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

1.0.0 Source

impl<T> ToString for T
where T: Display + ?Sized,

Panics

In this implementation, the to_string method panics if the Display implementation returns an error. This indicates an incorrect Display implementation since fmt::Write for String never returns an error itself.

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