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Diffstat (limited to 'clang/test/Sema/pointer-addition.c')
| -rw-r--r-- | clang/test/Sema/pointer-addition.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/clang/test/Sema/pointer-addition.c b/clang/test/Sema/pointer-addition.c new file mode 100644 index 0000000..21ce63b --- /dev/null +++ b/clang/test/Sema/pointer-addition.c @@ -0,0 +1,21 @@ +// RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic + +typedef struct S S; // expected-note 3 {{forward declaration of 'struct S'}} +void a(S* b, void* c) { + void (*fp)(int) = 0; + b++; // expected-error {{arithmetic on a pointer to an incomplete type}} + b += 1; // expected-error {{arithmetic on a pointer to an incomplete type}} + c++; // expected-warning {{arithmetic on a pointer to void is a GNU extension}} + c += 1; // expected-warning {{arithmetic on a pointer to void is a GNU extension}} + c--; // expected-warning {{arithmetic on a pointer to void is a GNU extension}} + c -= 1; // expected-warning {{arithmetic on a pointer to void is a GNU extension}} + (void) c[1]; // expected-warning {{subscript of a pointer to void is a GNU extension}} + b = 1+b; // expected-error {{arithmetic on a pointer to an incomplete type}} + /* The next couple tests are only pedantic warnings in gcc */ + void (*d)(S*,void*) = a; + d += 1; // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}} + d++; // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}} + d--; // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}} + d -= 1; // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}} + (void)(1 + d); // expected-warning {{arithmetic on a pointer to the function type 'void (S *, void *)' is a GNU extension}} +} |