compiler/rustc_error_codes/src/error_codes/E0013.md

   1 Static and const variables can refer to other const variables. But a const
   2 variable cannot refer to a static variable.
   3
   4 Erroneous code example:
   5
   6 ```compile_fail,E0013
   7 static X: i32 = 42;
   8 const Y: i32 = X;
   9 ```
  10
  11 In this example, `Y` cannot refer to `X` here. To fix this, the value can be
  12 extracted as a const and then used:
  13
  14 ```
  15 const A: i32 = 42;
  16 static X: i32 = A;
  17 const Y: i32 = A;
  18 ```