| // RUN: %clang_cc1 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -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 {{expression is not assignable}} |
| int *x = &__builtin_va_arg(ap, int); // expected-error {{cannot take the address of an rvalue}} |
| __builtin_va_end(ap); |
| } |
| |
| void f8(int a, ...) { |
| __builtin_va_list ap; |
| __builtin_va_start(ap, a); |
| (void)__builtin_va_arg(ap, void); // expected-error {{second argument to 'va_arg' is of incomplete type 'void'}} |
| __builtin_va_end(ap); |
| } |
| |
| enum E { x = -1, y = 2, z = 10000 }; |
| void f9(__builtin_va_list args) |
| { |
| (void)__builtin_va_arg(args, float); // expected-warning {{second argument to 'va_arg' is of promotable type 'float'}} |
| (void)__builtin_va_arg(args, enum E); // Don't warn here in C |
| (void)__builtin_va_arg(args, short); // expected-warning {{second argument to 'va_arg' is of promotable type 'short'}} |
| (void)__builtin_va_arg(args, char); // expected-warning {{second argument to 'va_arg' is of promotable type 'char'}} |
| } |
| |
| void f10(int a, ...) { |
| int i; |
| __builtin_va_list ap; |
| i = __builtin_va_start(ap, a); // expected-error {{assigning to 'int' from incompatible type 'void'}} |
| __builtin_va_end(ap); |
| } |