Vendor import of clang trunk r130700:

http://llvm.org/svn/llvm-project/cfe/trunk@130700

1 files changed, 106 insertions, 0 deletions

diff --git a/test/CXX/except/except.spec/p3.cpp b/test/CXX/except/except.spec/p3.cpp
new file mode 100644
index 0000000..5df5f26
--- /dev/null
+++ b/test/CXX/except/except.spec/p3.cpp
@@ -0,0 +1,106 @@
+// RUN: %clang_cc1 -std=c++0x -fexceptions -fcxx-exceptions -fsyntax-only -verify %s
+
+// Exception specification compatibility.
+// We test function pointers, because functions have an extra rule in p4.
+
+// Same type is compatible
+extern void (*r1)() throw(int);
+extern void (*r1)() throw(int);
+
+// Typedefs don't matter.
+typedef int INT;
+extern void (*r2)() throw(int);
+extern void (*r2)() throw(INT);
+
+// Order doesn't matter.
+extern void (*r3)() throw(int, float);
+extern void (*r3)() throw(float, int);
+
+// MS throw-any spec and no spec at all are compatible
+extern void (*r4)();
+extern void (*r4)() throw(...);
+
+// throw(X) and no spec are not compatible
+extern void (*r5)() throw(int); // expected-note {{previous declaration}}
+extern void (*r5)(); // expected-error {{exception specification in declaration does not match}}
+
+// For functions, we accept this with a warning.
+extern void f5() throw(int); // expected-note {{previous declaration}}
+extern void f5(); // expected-warning {{missing exception specification}}
+
+// Different types are not compatible.
+extern void (*r7)() throw(int); // expected-note {{previous declaration}}
+extern void (*r7)() throw(float); // expected-error {{exception specification in declaration does not match}}
+
+// Top-level const doesn't matter.
+extern void (*r8)() throw(int);
+extern void (*r8)() throw(const int);
+
+// Multiple appearances don't matter.
+extern void (*r9)() throw(int, int);
+extern void (*r9)() throw(int, int);
+
+
+// noexcept is compatible with itself
+extern void (*r10)() noexcept;
+extern void (*r10)() noexcept;
+
+// noexcept(true) is compatible with noexcept
+extern void (*r11)() noexcept;
+extern void (*r11)() noexcept(true);
+
+// noexcept(false) isn't
+extern void (*r12)() noexcept; // expected-note {{previous declaration}}
+extern void (*r12)() noexcept(false); // expected-error {{does not match}}
+
+// The form of the boolean expression doesn't matter.
+extern void (*r13)() noexcept(1 < 2);
+extern void (*r13)() noexcept(2 > 1);
+
+// noexcept(false) is incompatible with noexcept(true)
+extern void (*r14)() noexcept(true); // expected-note {{previous declaration}}
+extern void (*r14)() noexcept(false); // expected-error {{does not match}}
+
+// noexcept(false) is compatible with itself
+extern void (*r15)() noexcept(false);
+extern void (*r15)() noexcept(false);
+
+// noexcept(false) is compatible with MS throw(...)
+extern void (*r16)() noexcept(false);
+extern void (*r16)() throw(...);
+
+// noexcept(false) is *not* compatible with no spec
+extern void (*r17)(); // expected-note {{previous declaration}}
+extern void (*r17)() noexcept(false); // expected-error {{does not match}}
+
+// except for functions
+void f17();
+void f17() noexcept(false);
+
+// noexcept(false) is compatible with dynamic specs that throw unless
+// CWG 1073 resolution is accepted. Clang implements it.
+//extern void (*r18)() throw(int);
+//extern void (*r18)() noexcept(false);
+
+// noexcept(true) is compatible with dynamic specs that don't throw
+extern void (*r19)() throw();
+extern void (*r19)() noexcept(true);
+
+// The other way round doesn't work.
+extern void (*r20)() throw(); // expected-note {{previous declaration}}
+extern void (*r20)() noexcept(false); // expected-error {{does not match}}
+
+extern void (*r21)() throw(int); // expected-note {{previous declaration}}
+extern void (*r21)() noexcept(true); // expected-error {{does not match}}
+
+
+// As a very special workaround, we allow operator new to match no spec
+// with a throw(bad_alloc) spec, because C++0x makes an incompatible change
+// here.
+extern "C++" { namespace std { class bad_alloc {}; } }
+typedef decltype(sizeof(int)) mysize_t;
+void* operator new(mysize_t) throw(std::bad_alloc);
+void* operator new(mysize_t);
+void* operator new[](mysize_t);
+void* operator new[](mysize_t) throw(std::bad_alloc);
+