src/test/ui/consts/const-extern-fn/const-extern-fn-call-extern-fn.rs

   1 #![feature(const_extern_fn)]
   2
   3 extern "C" {
   4     fn regular_in_block();
   5 }
   6
   7 const extern fn bar() {
   8     unsafe {
   9         regular_in_block();
  10         //~^ ERROR: can only call other `const fn` within a `const fn`
  11     }
  12 }
  13
  14 extern fn regular() {}
  15
  16 const extern fn foo() {
  17     unsafe {
  18         regular();
  19         //~^ ERROR: can only call other `const fn` within a `const fn`
  20     }
  21 }
  22
  23 fn main() {}