Function std::char::from_u32_unchecked
[−]
[src]
pub unsafe fn from_u32_unchecked(i: u32) -> char1.5.0
Converts a u32 to a char, ignoring validity.
Note that all chars are valid u32s, and can be casted to one with
as:
let c = '💯'; let i = c as u32; assert_eq!(128175, i);
However, the reverse is not true: not all valid u32s are valid
chars. from_u32_unchecked() will ignore this, and blindly cast to
char, possibly creating an invalid one.
Safety
This function is unsafe, as it may construct invalid char values.
For a safe version of this function, see the from_u32() function.
Examples
Basic usage:
fn main() { use std::char; let c = unsafe { char::from_u32_unchecked(0x2764) }; assert_eq!('❤', c); }use std::char; let c = unsafe { char::from_u32_unchecked(0x2764) }; assert_eq!('❤', c);