llvm-for-llvmta/tools/clang/test/Sema/merge-decls.c

94 lines
2.1 KiB
C

// RUN: %clang_cc1 %s -verify -fsyntax-only
void foo(void);
void foo(void) {}
void foo(void);
void foo(void); // expected-note {{previous declaration is here}}
void foo(int); // expected-error {{conflicting types for 'foo'}}
int funcdef()
{
return 0;
}
int funcdef();
int funcdef2() { return 0; } // expected-note {{previous definition is here}}
int funcdef2() { return 0; } // expected-error {{redefinition of 'funcdef2'}}
// PR2502
void (*f)(void);
void (*f)() = 0;
typedef __attribute__(( ext_vector_type(2) )) int Vi2;
typedef __attribute__(( ext_vector_type(2) )) float Vf2;
Vf2 g0; // expected-note {{previous definition is here}}
Vi2 g0; // expected-error {{redefinition of 'g0'}}
_Complex int g1; // expected-note {{previous definition is here}}
_Complex float g1; // expected-error {{redefinition of 'g1'}}
// rdar://6096412
extern char i6096412[10];
extern char i6096412[];
void foo6096412(void) {
int x = sizeof(i6096412);
}
typedef int test1_IA[];
typedef int test1_A10[10];
static test1_A10 *test1_f(void);
void test1_g(void)
{
{
extern test1_IA *test1_f(void);
}
(void)sizeof(*test1_f());
}
typedef int test2_IA[];
typedef int test2_A10[10];
static test2_A10 *test2_f(void);
static test2_IA *test2_f(void);
void test2_g(void)
{
(void)sizeof(*test2_f());
}
int (*test3_f())[10];
int (*test3_f())[];
int test3_k = sizeof(*test3_f());
void test4_f(int);
void test4_f(a)
char a;
{
int v[sizeof(a) == 1 ? 1 : -1];
}
int test5_f(int (*)[10]);
int test5_f(int (*x)[]) {
return sizeof(*x); // expected-error {{invalid application of 'sizeof' to an incomplete type 'int []'}}
}
void test6_f(int (*a)[11]);
void test6_f(a)
int (*a)[];
{}
void test6_g() {
int arr[10];
test6_f(&arr); // expected-warning {{incompatible pointer types passing 'int (*)[10]' to parameter of type 'int (*)[11]}}
}
void test7_f(int (*)[10]);
void test7_f(int (*)[]); // expected-note {{passing argument to parameter here}}
void test7_g() {
int x[5];
test7_f(&x); // expected-warning {{incompatible pointer types passing 'int (*)[5]' to parameter of type 'int (*)[10]}}
}