1  /* Test C2x digit separators not in C11.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=c11 -pedantic-errors" } */
       4  
       5  #define m(x) 0
       6  
       7  _Static_assert (m(1'2)+(3'4) == 0, "digit separators");