gcc/testsuite/gcc.dg/dremf-type-compat-1.c

   1 /* Test for bogus diagnostics for dremf definition.  Although this
   2    definition is formally incorrect in ISO C, a GNU extension permits
   3    a prototype followed by unpromoted types in a function definition,
   4    so it should be permitted when the function is built in.  Bug
   5    16666.  */
   6 /* { dg-do compile } */
   7 /* { dg-options "" } */
   8
   9 float dremf (float, float);
  10
  11 float
  12 dremf (x, y)
  13      float x, y;
  14 {
  15   return x + y;
  16 }