gcc/testsuite/gcc.dg/decl-8.c

   1 /* Test diagnostics for duplicate typedefs.  Basic diagnostics.  */
   2 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu89 -pedantic-errors" } */
   5
   6 typedef int I; /* { dg-message "note: previous declaration of 'I' was here" } */
   7 typedef int I; /* { dg-error "redefinition of typedef 'I'" } */
   8
   9 typedef int I1; /* { dg-message "note: previous declaration of 'I1' was here" } */
  10 typedef long I1; /* { dg-error "conflicting types for 'I1'" } */