ports//lang/gnat-gcc41/work/gcc-4.1.2/gcc/testsuite/gcc.dg/cpp/paste13.c

/* Copyright (C) 2000 Free Software Foundation, Inc.  */

/* { dg-do preprocess } */

/* This used to be recognized as a comment when lexing after pasting
   spellings.  Neil Booth, 9 Oct 2002.  */

#define a /##/=
a			/* { dg-warning "valid preprocessing tok" } */

syntax highlighted by Code2HTML, v. 0.9.1