crash-12631281.cpp
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// RUN: %clang_cc1 -std=c++11 %s -emit-pch -o %t.pch
// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -include-pch %t.pch -verify
// RUN: %clang_cc1 -std=c++11 %s -emit-pch -fpch-instantiate-templates -o %t.pch
// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -include-pch %t.pch -verify
// expected-no-diagnostics
// rdar://12631281
// This reduced test case exposed a use-after-free memory bug, which was reliable
// reproduced only on guarded malloc (and probably valgrind).
#ifndef HEADER
#define HEADER
template < class _T2> struct is_convertible;
template <> struct is_convertible<int> { typedef int type; };
template <class _T1, class _T2> struct pair {
typedef _T1 first_type;
typedef _T2 second_type;
template <class _U1, class _U2, class = typename is_convertible< first_type>::type>
pair(_U1&& , _U2&& ); // expected-note {{candidate}}
};
template <class _ForwardIterator>
pair<_ForwardIterator, _ForwardIterator> __equal_range(_ForwardIterator) {
return pair<_ForwardIterator, _ForwardIterator>(0, 0); // expected-error {{no matching constructor}}
}
template <class _ForwardIterator>
pair<_ForwardIterator, _ForwardIterator> equal_range( _ForwardIterator a) {
return __equal_range(a); // expected-note {{instantiation}}
}
class A {
pair<int, int> range() {
return equal_range(0); // expected-note {{instantiation}}
}
};
#else
#endif