diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/c99-array-lval-4.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/c99-array-lval-4.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/c99-array-lval-4.c b/gcc-4.9/gcc/testsuite/gcc.dg/c99-array-lval-4.c new file mode 100644 index 000000000..259ce9214 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/c99-array-lval-4.c @@ -0,0 +1,24 @@ +/* Test for non-lvalue arrays decaying to pointers: in C99 only. + Test various ways of producing non-lvalue arrays. */ +/* Origin: Joseph Myers <jsm28@cam.ac.uk> */ +/* { dg-do compile } */ +/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */ + +struct s { char c[17]; }; + +struct s x; + +struct s a, b, c; +int d; + +#define ASSERT(v, a) char v[((a) ? 1 : -1)] + +ASSERT (p, sizeof (x.c) == 17); +ASSERT (q, sizeof (0, x.c) == sizeof (char *)); +ASSERT (r0, sizeof ((d ? b : c).c) == 17); +ASSERT (r1, sizeof ((d, b).c) == 17); +ASSERT (r2, sizeof ((a = b).c) == 17); +/* The non-lvalue array decays to a pointer in C99. */ +ASSERT (s0, sizeof (0, (d ? b : c).c) == sizeof (char *)); /* { dg-bogus "array" "bad non-lvalue array handling" } */ +ASSERT (s0, sizeof (0, (d, b).c) == sizeof (char *)); /* { dg-bogus "array" "bad non-lvalue array handling" } */ +ASSERT (s0, sizeof (0, (a = b).c) == sizeof (char *)); /* { dg-bogus "array" "bad non-lvalue array handling" } */ |