llvm-project/clang/test/SemaCXX/cxx0x-class.cpp
Richard Trieu 406e65c8d1 Modify the uninitialized field visitor to detect uninitialized use across the
fields in the class.  This allows a better checking of member intiailizers and
in class initializers in regards to initialization ordering.

For instance, this code will now produce warnings:

class A {
  int x;
  int y;
  A() : x(y) {}  // y is initialized after x, warn here
  A(int): y(x) {} // default initialization of leaves x uninitialized, warn here
};

Several test cases were updated with -Wno-uninitialized to silence this warning.

llvm-svn: 191068
2013-09-20 03:03:06 +00:00

40 lines
1.4 KiB
C++

// RUN: %clang_cc1 -Wno-uninitialized -fsyntax-only -verify -std=c++11 -Wno-error=static-float-init %s
int vs = 0;
class C {
public:
struct NestedC {
NestedC(int);
};
int i = 0;
static int si = 0; // expected-error {{non-const static data member must be initialized out of line}}
static const NestedC ci = 0; // expected-error {{static data member of type 'const C::NestedC' must be initialized out of line}}
static const int nci = vs; // expected-error {{in-class initializer for static data member is not a constant expression}}
static const int vi = 0;
static const volatile int cvi = 0; // expected-error {{static const volatile data member must be initialized out of line}}
};
namespace rdar8367341 {
float foo(); // expected-note {{here}}
struct A {
static const float x = 5.0f; // expected-warning {{requires 'constexpr'}} expected-note {{add 'constexpr'}}
static const float y = foo(); // expected-warning {{requires 'constexpr'}} expected-note {{add 'constexpr'}}
static constexpr float x2 = 5.0f;
static constexpr float y2 = foo(); // expected-error {{must be initialized by a constant expression}} expected-note {{non-constexpr function 'foo'}}
};
}
namespace Foo {
// Regression test -- forward declaration of Foo should not cause error about
// nonstatic data member.
class Foo;
class Foo {
int x;
int y = x;
};
}