1  /* Test C2x digit separators.  Invalid usages.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=c2x -pedantic-errors" } */
       4  
       5  void
       6  tf (void)
       7  {
       8    int i;
       9    i = 1''2; /* { dg-error "adjacent digit separators" } */
      10    i = 0x'0; /* { dg-error "digit separator after base indicator" } */
      11    i = 0X'1; /* { dg-error "digit separator after base indicator" } */
      12    i = 0b'0; /* { dg-error "digit separator after base indicator" } */
      13    i = 0B'1; /* { dg-error "digit separator after base indicator" } */
      14    i = 1'u; /* { dg-error "digit separator outside digit sequence" } */
      15    float f = 1.2e-3'f; /* { dg-error "digit separator outside digit sequence" } */
      16    i = 1'2'3'; /* { dg-error "12:missing terminating" } */
      17    ;
      18    double d;
      19    d = 1'.2'3e-4; /* { dg-warning "multi-character" } */
      20    /* { dg-error "expected" "parse error" { target *-*-* } .-1 } */
      21    d = 1.2''3; /* { dg-error "adjacent digit separators" } */
      22    d = 1.23e-4''5; /* { dg-error "adjacent digit separators" } */
      23    d = 1.2'3e-4'5'; /* { dg-error "17:missing terminating" } */
      24    /* { dg-error "expected" "parse error" { target *-*-* } .-1 } */
      25  }