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| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/Wattributes.C | 20 |
2 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ee47bd8..dc87b0c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-05-10 Martin Sebor <msebor@redhat.com> + + PR c++/38611 + * g++.dg/Wattributes.C: New test. + 2016-05-10 Marc Glisse <marc.glisse@inria.fr> * gcc.dg/tree-ssa/bit-assoc.c: New testcase. diff --git a/gcc/testsuite/g++.dg/Wattributes.C b/gcc/testsuite/g++.dg/Wattributes.C new file mode 100644 index 0000000..35fae03 --- /dev/null +++ b/gcc/testsuite/g++.dg/Wattributes.C @@ -0,0 +1,20 @@ +// PR c++/38611 +// { dg-do compile } + +struct A { unsigned char a [272]; }; + +typedef struct __attribute__ ((aligned (128))) A B; // { dg-warning "attributes ignored" } +typedef struct __attribute__ ((__may_alias__)) A C; // { dg-warning "attributes ignored" } + +#ifndef __cplusplus +# define alignof _Alignof +# define static_assert _Static_assert +#elif __cplusplus < 201103L +# define alignof __alignof__ +# define static_assert(expr, ignore) typedef int Assert [(expr) ? 1 : -1] +#endif + +#define SA(expr) static_assert ((expr), #expr) + +SA (alignof (struct A) == alignof (B)); + |