gcc/testsuite/gcc.dg/Wunsuffixed-float-constants-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-std=gnu99 -Wunsuffixed-float-constants" } */
   3
   4 #define VAL 0.5;
   5
   6 double a = 1.1d;
   7
   8 /* With FLOAT_CONST_DECIMAL64 switched to ON these would have type
   9    _Decimal64.  */
  10
  11 double b = VAL;         /* { dg-warning "unsuffixed floating constant" } */
  12 double c = 1.2;         /* { dg-warning "unsuffixed floating constant" } */
  13
  14 /* With FLOAT_CONST_DECIMAL64 switched to ON these are still binary.  */
  15
  16 double d = 0x5.0p1;     /* No warning for hex constant.  */
  17 double e = 3.1i;        /* No warning for imaginary constant.  */