diff options
author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
---|---|---|
committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/Sema/varargs.c | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/Sema/varargs.c')
-rw-r--r-- | clang/test/Sema/varargs.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/clang/test/Sema/varargs.c b/clang/test/Sema/varargs.c new file mode 100644 index 0000000..07081ed --- /dev/null +++ b/clang/test/Sema/varargs.c @@ -0,0 +1,78 @@ +// 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 {{address expression must be an lvalue or a function designator}} + __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'}} +} |