gcc/testsuite/gcc.dg/wtr-escape-1.c

   1 /* Test for -Wtraditional warnings on escape characters.
   2    Note, gcc should omit these warnings in system header files.
   3    By Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 8/22/2000.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-Wtraditional" } */
   6
   7 void
   8 testfunc ()
   9 {
  10   char c;
  11
  12   c = '\a'; /* { dg-warning "the meaning of" "escaped character warning " } */
  13   c = '\x2'; /* { dg-warning "the meaning of" "escaped character warning " } */
  14   c = '\n';
  15
  16 # 17 "sys-header.h" 3
  17 /* We are in system headers now, no -Wtraditional warnings should issue.  */
  18
  19   c = '\a';
  20   c = '\x2';
  21   c = '\n';
  22 }