File: const-fn-not-in-trait.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (13 lines) | stat: -rw-r--r-- 350 bytes parent folder | download | duplicates (21) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
// Test that const fn is illegal in a trait declaration, whether or
// not a default is provided, and even with the feature gate.

trait Foo {
    const fn f() -> u32;
    //~^ ERROR functions in traits cannot be declared const
    const fn g() -> u32 {
        //~^ ERROR functions in traits cannot be declared const
        0
    }
}

fn main() {}