diff options
Diffstat (limited to 'test/Sema/extern-redecl.c')
| -rw-r--r-- | test/Sema/extern-redecl.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/Sema/extern-redecl.c b/test/Sema/extern-redecl.c index 9a085de..e9a4c57 100644 --- a/test/Sema/extern-redecl.c +++ b/test/Sema/extern-redecl.c @@ -33,3 +33,32 @@ void test3declarer() { extern int test3_array[]; int x = sizeof(test3_array); // expected-error {{invalid application of 'sizeof' to an incomplete type 'int []'}} } + +void test4() { + extern int test4_array[]; + { + extern int test4_array[100]; + int x = sizeof(test4_array); // fine + } + int x = sizeof(test4_array); // expected-error {{invalid application of 'sizeof' to an incomplete type 'int []'}} +} + +// Test that invalid local extern declarations of library +// builtins behave reasonably. +extern void abort(void); // expected-note 2 {{previous declaration is here}} +extern float *calloc(); // expected-warning {{incompatible redeclaration of library function}} expected-note {{is a builtin}} expected-note 2 {{previous declaration is here}} +void test5a() { + int abort(); // expected-error {{conflicting types}} + float *malloc(); // expected-warning {{incompatible redeclaration of library function}} expected-note 2 {{is a builtin}} + int *calloc(); // expected-error {{conflicting types}} +} +void test5b() { + int abort(); // expected-error {{conflicting types}} + float *malloc(); // expected-warning {{incompatible redeclaration of library function}} + int *calloc(); // expected-error {{conflicting types}} +} +void test5c() { + void (*_abort)(void) = &abort; + void *(*_malloc)() = &malloc; + float *(*_calloc)() = &calloc; +} |
