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| // RUN: %clang_cc1 -fsyntax-only -verify -Wunused -Wunused-template -Wunused-member-function -Wno-unused-local-typedefs -Wno-c++11-extensions -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -Wunused -Wunused-template -Wunused-member-function -Wno-unused-local-typedefs -std=c++14 %s
#ifdef HEADER
static void headerstatic() {} // expected-warning{{unused}}
static inline void headerstaticinline() {}
namespace {
void headeranon() {} // expected-warning{{unused}}
inline void headerinlineanon() {}
}
namespace test7
{
template<typename T>
static inline void foo(T) { }
// This should not emit an unused-function warning since it inherits
// the static storage type from the base template.
template<>
inline void foo(int) { }
// Partial specialization
template<typename T, typename U>
static inline void bar(T, U) { }
template<typename U>
inline void bar(int, U) { }
template<>
inline void bar(int, int) { }
};
namespace pr19713 {
#if __cplusplus >= 201103L
static constexpr int constexpr1() { return 1; }
constexpr int constexpr2() { return 2; }
#endif
}
#else
#define HEADER
#include "warn-unused-filescoped.cpp"
static void f1(); // expected-warning{{unused}}
namespace {
void f2(); // expected-warning{{unused}}
void f3() { } // expected-warning{{unused}}
struct S {
void m1() { } // expected-warning{{unused}}
void m2(); // expected-warning{{unused}}
void m3();
S(const S&);
void operator=(const S&);
};
template <typename T>
struct TS {
void m();
};
template <> void TS<int>::m() { } // expected-warning{{unused}}
template <typename T>
void tf() { } // expected-warning{{unused}}
template <> void tf<int>() { } // expected-warning{{unused}}
struct VS {
virtual void vm() { }
};
struct SVS : public VS {
void vm() { }
};
}
void S::m3() { } // expected-warning{{unused}}
static inline void f4() { } // expected-warning{{unused}}
const unsigned int cx = 0; // expected-warning{{unused}}
const unsigned int cy = 0;
int f5() { return cy; }
static int x1; // expected-warning{{unused}}
namespace {
int x2; // expected-warning{{unused}}
struct S2 {
static int x; // expected-warning{{unused}}
};
template <typename T>
struct TS2 {
static int x;
};
template <> int TS2<int>::x; // expected-warning{{unused}}
}
namespace PR8841 {
// Ensure that friends of class templates are considered to have a dependent
// context and not marked unused.
namespace {
template <typename T> struct X {
friend bool operator==(const X&, const X&) { return false; }
};
}
template <typename T> void template_test(X<T> x) {
(void)(x == x);
}
void test() {
X<int> x;
template_test(x);
}
}
namespace test4 {
namespace { struct A {}; }
void test(A a); // expected-warning {{unused function}}
extern "C" void test4(A a);
}
namespace rdar8733476 {
static void foo() { } // expected-warning {{not needed and will not be emitted}}
template <int>
void bar() {
foo();
}
}
namespace test5 {
static int n = 0;
static int &r = n;
int f(int &);
int k = f(r);
// FIXME: We should produce warnings for both of these.
static const int m = n;
int x = sizeof(m);
static const double d = 0.0; // expected-warning{{not needed and will not be emitted}}
int y = sizeof(d);
}
namespace unused_nested {
class outer {
void func1();
struct {
void func2() {
}
} x;
};
}
namespace unused {
struct {
void func() { // expected-warning {{unused member function}}
}
} x; // expected-warning {{unused variable}}
}
namespace test6 {
typedef struct {
void bar();
} A;
typedef struct {
void bar(); // expected-warning {{unused member function 'bar'}}
} *B;
struct C {
void bar();
};
}
namespace pr14776 {
namespace {
struct X {};
}
X a = X(); // expected-warning {{unused variable 'a'}}
auto b = X(); // expected-warning {{unused variable 'b'}}
}
namespace UndefinedInternalStaticMember {
namespace {
struct X {
static const unsigned x = 3;
int y[x];
};
}
}
namespace test8 {
static void func();
void bar() { void func() __attribute__((used)); }
static void func() {}
}
namespace test9 {
template<typename T>
static void completeRedeclChainForTemplateSpecialization() { } // expected-warning {{unused}}
}
namespace test10 {
#if __cplusplus >= 201103L
// FIXME: Warn on template definitions with no instantiations?
template<class T>
constexpr T pi = T(3.14);
#endif
}
namespace pr19713 {
#if __cplusplus >= 201103L
// FIXME: We should warn on both of these.
static constexpr int constexpr3() { return 1; } // expected-warning {{unused}}
constexpr int constexpr4() { return 2; }
#endif
}
#endif
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