| // RUN: clang-cc -fsyntax-only -verify %s && |
| // RUN: clang-cc -fsyntax-only -verify %s -triple x86_64-apple-darwin9 |
| |
| void f1(int a) |
| { |
| __builtin_va_list ap; |
| |
| __builtin_va_start(ap, a, a); // expected-error {{too many arguments to function}} |
| __builtin_va_start(ap, a); // expected-error {{'va_start' used in function with fixed args}} |
| } |
| |
| void f2(int a, int b, ...) |
| { |
| __builtin_va_list ap; |
| |
| __builtin_va_start(ap, 10); // expected-warning {{second parameter of 'va_start' not last named argument}} |
| __builtin_va_start(ap, a); // expected-warning {{second parameter of 'va_start' not last named argument}} |
| __builtin_va_start(ap, b); |
| } |
| |
| void f3(float a, ...) |
| { |
| __builtin_va_list ap; |
| |
| __builtin_va_start(ap, a); |
| __builtin_va_start(ap, (a)); |
| } |
| |
| |
| // stdarg: PR3075 |
| void f4(const char *msg, ...) { |
| __builtin_va_list ap; |
| __builtin_stdarg_start((ap), (msg)); |
| __builtin_va_end (ap); |
| } |
| |
| void f5() { |
| __builtin_va_list ap; |
| __builtin_va_start(ap,ap); // expected-error {{'va_start' used in function with fixed args}} |
| } |
| |
| void f6(int a, ...) { |
| __builtin_va_list ap; |
| __builtin_va_start(ap); // expected-error {{too few arguments to function}} |
| } |
| |
| // PR3350 |
| void |
| foo(__builtin_va_list authors, ...) { |
| __builtin_va_start (authors, authors); |
| (void)__builtin_va_arg(authors, int); |
| __builtin_va_end (authors); |
| } |
| |
| void f7(int a, ...) { |
| __builtin_va_list ap; |
| __builtin_va_start(ap, a); |
| // FIXME: This error message is sub-par. |
| __builtin_va_arg(ap, int) = 1; // expected-error {{non-object type 'int' is not assignable}} |
| int *x = &__builtin_va_arg(ap, int); // expected-error {{address expression must be an lvalue or a function designator}} |
| __builtin_va_end(ap); |
| } |