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// RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s
struct A; // expected-note 4 {{forward declaration of 'A'}}
struct Abstract { virtual void f() = 0; }; // expected-note {{unimplemented pure virtual method 'f'}}
void trys() {
try {
} catch(int i) { // expected-note {{previous definition}}
int j = i;
int i; // expected-error {{redefinition of 'i'}}
} catch(float i) {
} catch(void v) { // expected-error {{cannot catch incomplete type 'void'}}
} catch(A a) { // expected-error {{cannot catch incomplete type 'A'}}
} catch(A *a) { // expected-error {{cannot catch pointer to incomplete type 'A'}}
} catch(A &a) { // expected-error {{cannot catch reference to incomplete type 'A'}}
} catch(Abstract) { // expected-error {{variable type 'Abstract' is an abstract class}}
} catch(...) {
int j = i; // expected-error {{use of undeclared identifier 'i'}}
}
try {
} catch(...) { // expected-error {{catch-all handler must come last}}
} catch(int) {
}
}
void throws() {
throw;
throw 0;
throw throw; // expected-error {{cannot throw object of incomplete type 'void'}}
throw (A*)0; // expected-error {{cannot throw pointer to object of incomplete type 'A'}}
}
void jumps() {
l1:
goto l5;
goto l4; // expected-error {{goto into protected scope}}
goto l3; // expected-error {{goto into protected scope}}
goto l2; // expected-error {{goto into protected scope}}
goto l1;
try { // expected-note 4 {{jump bypasses initialization of try block}}
l2:
goto l5;
goto l4; // expected-error {{goto into protected scope}}
goto l3; // expected-error {{goto into protected scope}}
goto l2;
goto l1;
} catch(int) { // expected-note 4 {{jump bypasses initialization of catch block}}
l3:
goto l5;
goto l4; // expected-error {{goto into protected scope}}
goto l3;
goto l2; // expected-error {{goto into protected scope}}
goto l1;
} catch(...) { // expected-note 4 {{jump bypasses initialization of catch block}}
l4:
goto l5;
goto l4;
goto l3; // expected-error {{goto into protected scope}}
goto l2; // expected-error {{goto into protected scope}}
goto l1;
}
l5:
goto l5;
goto l4; // expected-error {{goto into protected scope}}
goto l3; // expected-error {{goto into protected scope}}
goto l2; // expected-error {{goto into protected scope}}
goto l1;
}
struct BadReturn {
BadReturn() try {
} catch(...) {
// Try to hide
try {
} catch(...) {
{
if (0)
return; // expected-error {{return in the catch of a function try block of a constructor is illegal}}
}
}
}
BadReturn(int);
};
BadReturn::BadReturn(int) try {
} catch(...) {
// Try to hide
try {
} catch(int) {
return; // expected-error {{return in the catch of a function try block of a constructor is illegal}}
} catch(...) {
{
if (0)
return; // expected-error {{return in the catch of a function try block of a constructor is illegal}}
}
}
}
// Cannot throw an abstract type.
class foo {
public:
foo() {}
void bar () {
throw *this; // expected-error{{cannot throw an object of abstract type 'foo'}}
}
virtual void test () = 0; // expected-note{{unimplemented pure virtual method 'test'}}
};
namespace PR6831 {
namespace NA { struct S; }
namespace NB { struct S; }
void f() {
using namespace NA;
using namespace NB;
try {
} catch (int S) {
}
}
}
namespace Decay {
struct A {
void f() throw (A[10]);
};
template<typename T> struct B {
void f() throw (B[10]);
};
template struct B<int>;
void f() throw (int[10], int(*)());
void f() throw (int*, int());
template<typename T> struct C {
void f() throw (T); // expected-error {{pointer to incomplete type 'Decay::E' is not allowed in exception specification}}
};
struct D {
C<D[10]> c;
};
struct E; // expected-note {{forward declaration}}
C<E[10]> e; // expected-note {{in instantiation of}}
}
void rval_ref() throw (int &&); // expected-error {{rvalue reference type 'int &&' is not allowed in exception specification}} expected-warning {{C++11}}
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