http://llvm.org/bugs/show_bug.cgi?id=16353
Bug ID: 16353
Summary: Missing warning (error in C++11) for passing
nontrivial object to varargs function via function
pointer
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Keywords: accepts-invalid
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
$ cat test.cc
struct Foo {
Foo() {}
Foo(const Foo&) {}
};
void f(...);
void g() {
Foo foo;
f(foo);
void (*fp)(...) = f;
fp(foo);
}
$ clang -fsyntax-only -Wall test.cc
test.cc:10:5: error: cannot pass object of non-POD type 'Foo' through variadic
function; call will abort at runtime [-Wnon-pod-varargs]
f(foo);
^
1 error generated
$ clang -fsyntax-only -Wall -std=c++11 test.cc
test.cc:10:5: error: cannot pass object of non-trivial type 'Foo' through
variadic function; call will abort at runtime [-Wnon-pod-varargs]
f(foo);
^
1 error generated
$ g++ -c -o /dev/null -Wall test.cc
test.cc: In function 'void g()':
test.cc:10:8: error: cannot pass objects of non-trivially-copyable type 'struct
Foo' through '...'
test.cc:12:9: error: cannot pass objects of non-trivially-copyable type 'struct
Foo' through '...'
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