diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/alias-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/alias-1.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/alias-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/alias-1.c new file mode 100644 index 000000000..388cb3bf5 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/alias-1.c @@ -0,0 +1,28 @@ +// { dg-do compile } +// { dg-options "-Wstrict-aliasing=2 -fstrict-aliasing" } + +// Copyright (C) 2002 Free Software Foundation, Inc. +// Contributed by Nathan Sidwell 29 Sep 2002 <nathan@codesourcery.com> + +// 8083. warn about odd casts + +typedef int YYSTYPE; +typedef struct tDefEntry +{ + unsigned t; + +} tDefEntry; +struct incomplete; + + +YYSTYPE + addSibMacro( + YYSTYPE list ) + { + tDefEntry** ppT = (tDefEntry**)&list; // { dg-warning "type-punned pointer will" "" } + + struct incomplete *p = (struct incomplete *)&list; // { dg-warning "type-punning to incomplete" "" } + + return list; + } + |