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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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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/anonymous-struct-union.c | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/Sema/anonymous-struct-union.c')
-rw-r--r-- | clang/test/Sema/anonymous-struct-union.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/clang/test/Sema/anonymous-struct-union.c b/clang/test/Sema/anonymous-struct-union.c new file mode 100644 index 0000000..e082290 --- /dev/null +++ b/clang/test/Sema/anonymous-struct-union.c @@ -0,0 +1,110 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s +struct X { + union { + float f3; + double d2; + } named; + + union { + int i; + float f; + + union { + float f2; + double d; + }; + }; + + struct { + int a; + float b; + }; +}; + +void test_unqual_references(struct X x, const struct X xc) { + x.i = 0; + x.f = 0.0; + x.f2 = x.f; + x.d = x.f; + x.f3 = 0; // expected-error{{no member named 'f3'}} + x.a = 0; + + xc.d = 0.0; // expected-error{{read-only variable is not assignable}} + xc.f = 0; // expected-error{{read-only variable is not assignable}} + xc.a = 0; // expected-error{{read-only variable is not assignable}} +} + + +struct Redecl { + int x; // expected-note{{previous declaration is here}} + struct y { }; + + union { + int x; // expected-error{{member of anonymous union redeclares 'x'}} + float y; + double z; // expected-note{{previous declaration is here}} + double zz; // expected-note{{previous declaration is here}} + }; + + int z; // expected-error{{duplicate member 'z'}} + void zz(); // expected-error{{duplicate member 'zz'}} +}; + +union { // expected-warning{{declaration does not declare anything}} + int int_val; + float float_val; +}; + +static union { // expected-warning{{declaration does not declare anything}} + int int_val2; + float float_val2; +}; + +void f() { + int_val2 = 0; // expected-error{{use of undeclared identifier}} + float_val2 = 0.0; // expected-error{{use of undeclared identifier}} +} + +void g() { + union { // expected-warning{{declaration does not declare anything}} + int i; + float f2; + }; + i = 0; // expected-error{{use of undeclared identifier}} + f2 = 0.0; // expected-error{{use of undeclared identifier}} +} + +// <rdar://problem/6483159> +struct s0 { union { int f0; }; }; + +// <rdar://problem/6481130> +typedef struct { }; // expected-warning{{declaration does not declare anything}} + +// PR3675 +struct s1 { + int f0; // expected-note{{previous declaration is here}} + union { + int f0; // expected-error{{member of anonymous union redeclares 'f0'}} + }; +}; + +// PR3680 +struct {}; // expected-warning{{declaration does not declare anything}} + +struct s2 { + union { + int a; + } // expected-warning{{expected ';' at end of declaration list}} +}; // expected-error{{expected member name or ';' after declaration specifiers}} + +// Make sure we don't a.k.a. anonymous structs. +typedef struct { + int x; +} a_struct; +int tmp = (a_struct) { .x = 0 }; // expected-error {{initializing 'int' with an expression of incompatible type 'a_struct'}} + +// This example comes out of the C11 standard; make sure we don't accidentally reject it. +struct s { + struct { int i; }; + int a[]; +}; |