diff options
Diffstat (limited to 'test/CXX/dcl.decl')
-rw-r--r-- | test/CXX/dcl.decl/dcl.fct.def/dcl.fct.def.default/p2.cpp | 56 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.aggr/p1-0x.cpp | 48 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.list/basic.cpp | 14 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x-fixits.cpp | 2 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x.cpp | 40 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-cxx11-nowarn.cpp | 210 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp | 2 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx03-extra-copy.cpp | 4 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.init/dcl.init.string/p1.cpp | 12 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6-0x.cpp | 41 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6.cpp | 14 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.meaning/dcl.fct/p9-0x.cpp | 2 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.meaning/dcl.ref/p5.cpp | 2 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.meaning/p1-0x.cpp | 24 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.meaning/p1.cpp | 37 | ||||
-rw-r--r-- | test/CXX/dcl.decl/dcl.name/p1.cpp | 6 |
16 files changed, 475 insertions, 39 deletions
diff --git a/test/CXX/dcl.decl/dcl.fct.def/dcl.fct.def.default/p2.cpp b/test/CXX/dcl.decl/dcl.fct.def/dcl.fct.def.default/p2.cpp new file mode 100644 index 0000000000000..06dd1bb05560b --- /dev/null +++ b/test/CXX/dcl.decl/dcl.fct.def/dcl.fct.def.default/p2.cpp @@ -0,0 +1,56 @@ +// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s + +// An explicitly-defaulted function may be declared constexpr only if it would +// have been implicitly declared as constexpr. +struct S1 { + constexpr S1() = default; // expected-error {{defaulted definition of default constructor is not constexpr}} + constexpr S1(const S1&) = default; + constexpr S1(S1&&) = default; + constexpr S1 &operator=(const S1&) = default; // expected-error {{explicitly-defaulted copy assignment operator may not have}} + constexpr S1 &operator=(S1&&) = default; // expected-error {{explicitly-defaulted move assignment operator may not have}} + constexpr ~S1() = default; // expected-error {{destructor cannot be marked constexpr}} + int n; +}; +struct NoCopyMove { + constexpr NoCopyMove() {} + NoCopyMove(const NoCopyMove&); + NoCopyMove(NoCopyMove&&); +}; +struct S2 { + constexpr S2() = default; + constexpr S2(const S2&) = default; // expected-error {{defaulted definition of copy constructor is not constexpr}} + constexpr S2(S2&&) = default; // expected-error {{defaulted definition of move constructor is not constexpr}} + NoCopyMove ncm; +}; + +// If a function is explicitly defaulted on its first declaration +// -- it is implicitly considered to be constexpr if the implicit declaration +// would be +struct S3 { + S3() = default; // expected-note {{here}} + S3(const S3&) = default; + S3(S3&&) = default; + constexpr S3(int n) : n(n) {} + int n; +}; +constexpr S3 s3a = S3(0); +constexpr S3 s3b = s3a; +constexpr S3 s3c = S3(); +constexpr S3 s3d; // expected-error {{constant expression}} expected-note {{non-constexpr constructor}} + +struct S4 { + S4() = default; + S4(const S4&) = default; // expected-note {{here}} + S4(S4&&) = default; // expected-note {{here}} + NoCopyMove ncm; +}; +constexpr S4 s4a; // ok +constexpr S4 s4b = S4(); // expected-error {{constant expression}} expected-note {{non-constexpr constructor}} +constexpr S4 s4c = s4a; // expected-error {{constant expression}} expected-note {{non-constexpr constructor}} + +struct S5 { + constexpr S5(); + int n = 1, m = n + 3; +}; +constexpr S5::S5() = default; +static_assert(S5().m == 4, ""); diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.aggr/p1-0x.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.aggr/p1-0x.cpp index b8c1e18a2e135..7764980e34f7e 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.aggr/p1-0x.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.aggr/p1-0x.cpp @@ -8,55 +8,71 @@ private: protected: struct Inner { int m; }; public: - bool &br; + bool &br; // expected-note {{default constructor of 'Aggr' is implicitly deleted because field 'br' of reference type 'bool &' would not be initialized}} }; bool b; Aggr ag = { b }; // with no user-provided constructors, ... -struct NonAggr1a { - NonAggr1a(int, int); +struct NonAggr1a { // expected-note 2 {{candidate constructor}} + NonAggr1a(int, int); // expected-note {{candidate constructor}} int k; }; // In C++0x, 'user-provided' is only defined for special member functions, so // this type is considered to be an aggregate. This is considered to be // a language defect. -NonAggr1a na1a = { 42 }; // expected-error {{non-aggregate type 'NonAggr1a'}} +NonAggr1a na1a = { 42 }; // expected-error {{no matching constructor for initialization of 'NonAggr1a'}} struct NonAggr1b { - NonAggr1b(const NonAggr1b &); + NonAggr1b(const NonAggr1b &); // expected-note {{candidate constructor}} int k; }; -NonAggr1b na1b = { 42 }; // expected-error {{non-aggregate type 'NonAggr1b'}} +NonAggr1b na1b = { 42 }; // expected-error {{no matching constructor for initialization of 'NonAggr1b'}} // no brace-or-equal-initializers for non-static data members, ... -struct NonAggr2 { +struct NonAggr2 { // expected-note 3 {{candidate constructor}} int m = { 123 }; }; -NonAggr2 na2 = { 42 }; // expected-error {{non-aggregate type 'NonAggr2'}} +NonAggr2 na2 = { 42 }; // expected-error {{no matching constructor for initialization of 'NonAggr2'}} // no private... -struct NonAggr3 { +struct NonAggr3 { // expected-note 3 {{candidate constructor}} private: int n; }; -NonAggr3 na3 = { 42 }; // expected-error {{non-aggregate type 'NonAggr3'}} +NonAggr3 na3 = { 42 }; // expected-error {{no matching constructor for initialization of 'NonAggr3'}} // or protected non-static data members, ... -struct NonAggr4 { +struct NonAggr4 { // expected-note 3 {{candidate constructor}} protected: int n; }; -NonAggr4 na4 = { 42 }; // expected-error {{non-aggregate type 'NonAggr4'}} +NonAggr4 na4 = { 42 }; // expected-error {{no matching constructor for initialization of 'NonAggr4'}} // no base classes, ... -struct NonAggr5 : Aggr { +struct NonAggr5 : Aggr { // expected-note 3 {{candidate constructor}} }; -NonAggr5 na5 = { b }; // expected-error {{non-aggregate type 'NonAggr5'}} +NonAggr5 na5 = { b }; // expected-error {{no matching constructor for initialization of 'NonAggr5'}} +template<typename...BaseList> +struct MaybeAggr5a : BaseList... {}; // expected-note {{default constructor of 'MaybeAggr5a<Aggr>' is implicitly deleted because base class 'Aggr' has a deleted default constructor}} +MaybeAggr5a<> ma5a0 = {}; // ok +MaybeAggr5a<Aggr> ma5a1 = {}; // expected-error {{call to implicitly-deleted default constructor of 'MaybeAggr5a<Aggr>'}} // and no virtual functions. -struct NonAggr6 { +struct NonAggr6 { // expected-note 3 {{candidate constructor}} virtual void f(); int n; }; -NonAggr6 na6 = { 42 }; // expected-error {{non-aggregate type 'NonAggr6'}} +NonAggr6 na6 = { 42 }; // expected-error {{no matching constructor for initialization of 'NonAggr6'}} + +struct DefaultedAggr { + int n; + + DefaultedAggr() = default; + DefaultedAggr(const DefaultedAggr &) = default; + DefaultedAggr(DefaultedAggr &&) = default; + DefaultedAggr &operator=(const DefaultedAggr &) = default; + DefaultedAggr &operator=(DefaultedAggr &) = default; + ~DefaultedAggr() = default; +}; +DefaultedAggr da = { 42 } ; diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.list/basic.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.list/basic.cpp index 5ebc22fd82074..b30e0ec7856ba 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.list/basic.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.list/basic.cpp @@ -1,5 +1,17 @@ -// RUN: %clang_cc1 -fsyntax-only -verify %s +// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s void f0() { int &ir = { 17 }; // expected-error{{reference to type 'int' cannot bind to an initializer list}} } + +namespace PR12453 { + template<typename T> + void f(int i) { + T x{i}; // expected-error{{non-constant-expression cannot be narrowed from type 'int' to 'float' in initializer list}} \ + // expected-note{{override this message by inserting an explicit cast}} + T y{i}; // expected-error{{non-constant-expression cannot be narrowed from type 'int' to 'float' in initializer list}} \ + // expected-note{{override this message by inserting an explicit cast}} + } + + template void f<float>(int); // expected-note{{in instantiation of function template specialization 'PR12453::f<float>' requested here}} +} diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x-fixits.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x-fixits.cpp index dc49deabdea4d..0bea4ede19cad 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x-fixits.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x-fixits.cpp @@ -1,4 +1,4 @@ -// RUN: %clang_cc1 -fsyntax-only -Wc++0x-compat -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s +// RUN: %clang_cc1 -fsyntax-only -Wc++11-compat -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s // Verify that the appropriate fixits are emitted for narrowing conversions in // initializer lists. diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x.cpp index 2294a4eb08940..db20ea6426e00 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-0x.cpp @@ -31,12 +31,20 @@ struct Agg { T t; }; +template<typename T> +struct Convert { + constexpr Convert(T v) : v(v) {} + constexpr operator T() const { return v; } + T v; +}; +template<typename T> Convert<T> ConvertVar(); + // C++0x [dcl.init.list]p7: A narrowing conversion is an implicit conversion // // * from a floating-point type to an integer type, or void float_to_int() { - Agg<char> a1 = {1.0F}; // expected-error {{ cannot be narrowed }} expected-note {{override}} + Agg<char> a1 = {1.0F}; // expected-error {{type 'float' cannot be narrowed to 'char'}} expected-note {{override}} Agg<char> a2 = {1.0}; // expected-error {{ cannot be narrowed }} expected-note {{override}} Agg<char> a3 = {1.0L}; // expected-error {{ cannot be narrowed }} expected-note {{override}} @@ -46,6 +54,9 @@ void float_to_int() { Agg<char> a4 = {f}; // expected-error {{ cannot be narrowed }} expected-note {{override}} Agg<char> a5 = {d}; // expected-error {{ cannot be narrowed }} expected-note {{override}} Agg<char> a6 = {ld}; // expected-error {{ cannot be narrowed }} expected-note {{override}} + + Agg<char> ce1 = { Convert<float>(1.0) }; // expected-error {{type 'float' cannot be narrowed to 'char'}} expected-note {{override}} + Agg<char> ce2 = { ConvertVar<double>() }; // expected-error {{type 'double' cannot be narrowed to 'char'}} expected-note {{override}} } // * from long double to double or float, or from double to float, except where @@ -61,7 +72,7 @@ void shrink_float() { // Variables. Agg<float> f1 = {f}; // OK (no-op) - Agg<float> f2 = {d}; // expected-error {{ cannot be narrowed }} expected-note {{override}} + Agg<float> f2 = {d}; // expected-error {{non-constant-expression cannot be narrowed from type 'double' to 'float'}} expected-note {{override}} Agg<float> f3 = {ld}; // expected-error {{ cannot be narrowed }} expected-note {{override}} // Exact constants. Agg<float> f4 = {1.0}; // OK (double constant represented exactly) @@ -70,7 +81,7 @@ void shrink_float() { Agg<float> f6 = {0.1}; // OK (double constant in range but rounded) Agg<float> f7 = {0.1L}; // OK (long double constant in range but rounded) // Out of range constants. - Agg<float> f8 = {1E50}; // expected-error {{ cannot be narrowed }} expected-note {{override}} + Agg<float> f8 = {1E50}; // expected-error {{constant expression evaluates to 1.000000e+50 which cannot be narrowed to type 'float'}} expected-note {{override}} Agg<float> f9 = {1E50L}; // expected-error {{ cannot be narrowed }} expected-note {{override}} // More complex constant expression. constexpr long double e40 = 1E40L, e30 = 1E30L, e39 = 1E39L; @@ -89,6 +100,9 @@ void shrink_float() { // More complex constant expression. constexpr long double e315 = 1E315L, e305 = 1E305L, e314 = 1E314L; Agg<double> d7 = {e315 - 5 * e314 + e305 - 5 * e314}; // OK + + Agg<float> ce1 = { Convert<double>(1e300) }; // expected-error {{constant expression evaluates to 1.000000e+300 which cannot be narrowed to type 'float'}} expected-note {{override}} + Agg<double> ce2 = { ConvertVar<long double>() }; // expected-error {{non-constant-expression cannot be narrowed from type 'long double' to 'double'}} expected-note {{override}} } // * from an integer type or unscoped enumeration type to a floating-point type, @@ -107,6 +121,9 @@ void int_to_float() { // Constants. Agg<float> f4 = {12345678}; // OK (exactly fits in a float) Agg<float> f5 = {123456789}; // expected-error {{ cannot be narrowed }} expected-note {{override}} + + Agg<float> ce1 = { Convert<int>(123456789) }; // expected-error {{constant expression evaluates to 123456789 which cannot be narrowed to type 'float'}} expected-note {{override}} + Agg<double> ce2 = { ConvertVar<long long>() }; // expected-error {{non-constant-expression cannot be narrowed from type 'long long' to 'double'}} expected-note {{override}} } // * from an integer type or unscoped enumeration type to an integer type that @@ -147,6 +164,9 @@ void shrink_int() { // Conversions from pointers to booleans aren't narrowing conversions. Agg<bool> b = {&b1}; // OK + + Agg<short> ce1 = { Convert<int>(100000) }; // expected-error {{constant expression evaluates to 100000 which cannot be narrowed to type 'short'}} expected-note {{override}} expected-warning {{changes value from 100000 to -31072}} + Agg<char> ce2 = { ConvertVar<short>() }; // expected-error {{non-constant-expression cannot be narrowed from type 'short' to 'char'}} expected-note {{override}} } // Be sure that type- and value-dependent expressions in templates get the error @@ -173,3 +193,17 @@ void test_qualifiers(int i) { // Template arguments make it harder to avoid printing qualifiers: Agg<const unsigned char> c2 = {j}; // expected-error {{from type 'int' to 'const unsigned char' in}} expected-note {{override}} } + +// Test SFINAE checks. +template<unsigned> struct Value { }; + +template<typename T> +int &check_narrowed(Value<sizeof((T){1.1})>); + +template<typename T> +float &check_narrowed(...); + +void test_narrowed(Value<sizeof(int)> vi, Value<sizeof(double)> vd) { + int &ir = check_narrowed<double>(vd); + float &fr = check_narrowed<int>(vi); +} diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-cxx11-nowarn.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-cxx11-nowarn.cpp new file mode 100644 index 0000000000000..4bcf113d71429 --- /dev/null +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.list/p7-cxx11-nowarn.cpp @@ -0,0 +1,210 @@ +// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wno-error=c++11-narrowing -triple x86_64-apple-macosx10.6.7 -verify %s +// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wno-error=narrowing -triple x86_64-apple-macosx10.6.7 -verify %s + +// Verify that narrowing conversions in initializer lists cause errors in C++0x +// mode. + +void std_example() { + int x = 999; // x is not a constant expression + const int y = 999; + const int z = 99; + char c1 = x; // OK, though it might narrow (in this case, it does narrow) + char c2{x}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + char c3{y}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} expected-warning {{changes value}} + char c4{z}; // OK: no narrowing needed + unsigned char uc1 = {5}; // OK: no narrowing needed + unsigned char uc2 = {-1}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + unsigned int ui1 = {-1}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + signed int si1 = + { (unsigned int)-1 }; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + int ii = {2.0}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + float f1 { x }; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + float f2 { 7 }; // OK: 7 can be exactly represented as a float + int f(int); + int a[] = + { 2, f(2), f(2.0) }; // OK: the double-to-int conversion is not at the top level +} + +// Test each rule individually. + +template<typename T> +struct Agg { + T t; +}; + +template<typename T> +struct Convert { + constexpr Convert(T v) : v(v) {} + constexpr operator T() const { return v; } + T v; +}; +template<typename T> Convert<T> ConvertVar(); + +// C++0x [dcl.init.list]p7: A narrowing conversion is an implicit conversion +// +// * from a floating-point type to an integer type, or + +void float_to_int() { + Agg<char> a1 = {1.0F}; // expected-warning {{type 'float' cannot be narrowed to 'char'}} expected-note {{override}} + Agg<char> a2 = {1.0}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<char> a3 = {1.0L}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + float f = 1.0; + double d = 1.0; + long double ld = 1.0; + Agg<char> a4 = {f}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<char> a5 = {d}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<char> a6 = {ld}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + Agg<char> ce1 = { Convert<float>(1.0) }; // expected-warning {{type 'float' cannot be narrowed to 'char'}} expected-note {{override}} + Agg<char> ce2 = { ConvertVar<double>() }; // expected-warning {{type 'double' cannot be narrowed to 'char'}} expected-note {{override}} +} + +// * from long double to double or float, or from double to float, except where +// the source is a constant expression and the actual value after conversion +// is within the range of values that can be represented (even if it cannot be +// represented exactly), or + +void shrink_float() { + // These aren't constant expressions. + float f = 1.0; + double d = 1.0; + long double ld = 1.0; + + // Variables. + Agg<float> f1 = {f}; // OK (no-op) + Agg<float> f2 = {d}; // expected-warning {{non-constant-expression cannot be narrowed from type 'double' to 'float'}} expected-note {{override}} + Agg<float> f3 = {ld}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + // Exact constants. + Agg<float> f4 = {1.0}; // OK (double constant represented exactly) + Agg<float> f5 = {1.0L}; // OK (long double constant represented exactly) + // Inexact but in-range constants. + Agg<float> f6 = {0.1}; // OK (double constant in range but rounded) + Agg<float> f7 = {0.1L}; // OK (long double constant in range but rounded) + // Out of range constants. + Agg<float> f8 = {1E50}; // expected-warning {{constant expression evaluates to 1.000000e+50 which cannot be narrowed to type 'float'}} expected-note {{override}} + Agg<float> f9 = {1E50L}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + // More complex constant expression. + constexpr long double e40 = 1E40L, e30 = 1E30L, e39 = 1E39L; + Agg<float> f10 = {e40 - 5 * e39 + e30 - 5 * e39}; // OK + + // Variables. + Agg<double> d1 = {f}; // OK (widening) + Agg<double> d2 = {d}; // OK (no-op) + Agg<double> d3 = {ld}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + // Exact constant. + Agg<double> d4 = {1.0L}; // OK (long double constant represented exactly) + // Inexact but in-range constant. + Agg<double> d5 = {0.1L}; // OK (long double constant in range but rounded) + // Out of range constant. + Agg<double> d6 = {1E315L}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + // More complex constant expression. + constexpr long double e315 = 1E315L, e305 = 1E305L, e314 = 1E314L; + Agg<double> d7 = {e315 - 5 * e314 + e305 - 5 * e314}; // OK + + Agg<float> ce1 = { Convert<double>(1e300) }; // expected-warning {{constant expression evaluates to 1.000000e+300 which cannot be narrowed to type 'float'}} expected-note {{override}} + Agg<double> ce2 = { ConvertVar<long double>() }; // expected-warning {{non-constant-expression cannot be narrowed from type 'long double' to 'double'}} expected-note {{override}} +} + +// * from an integer type or unscoped enumeration type to a floating-point type, +// except where the source is a constant expression and the actual value after +// conversion will fit into the target type and will produce the original +// value when converted back to the original type, or +void int_to_float() { + // Not a constant expression. + char c = 1; + + // Variables. Yes, even though all char's will fit into any floating type. + Agg<float> f1 = {c}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<double> f2 = {c}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<long double> f3 = {c}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + // Constants. + Agg<float> f4 = {12345678}; // OK (exactly fits in a float) + Agg<float> f5 = {123456789}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + Agg<float> ce1 = { Convert<int>(123456789) }; // expected-warning {{constant expression evaluates to 123456789 which cannot be narrowed to type 'float'}} expected-note {{override}} + Agg<double> ce2 = { ConvertVar<long long>() }; // expected-warning {{non-constant-expression cannot be narrowed from type 'long long' to 'double'}} expected-note {{override}} +} + +// * from an integer type or unscoped enumeration type to an integer type that +// cannot represent all the values of the original type, except where the +// source is a constant expression and the actual value after conversion will +// fit into the target type and will produce the original value when converted +// back to the original type. +void shrink_int() { + // Not a constant expression. + short s = 1; + unsigned short us = 1; + Agg<char> c1 = {s}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<unsigned short> s1 = {s}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<short> s2 = {us}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + // "that cannot represent all the values of the original type" means that the + // validity of the program depends on the relative sizes of integral types. + // This test compiles with -m64, so sizeof(int)<sizeof(long)==sizeof(long + // long). + long l1 = 1; + Agg<int> i1 = {l1}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + long long ll = 1; + Agg<long> l2 = {ll}; // OK + + // Constants. + Agg<char> c2 = {127}; // OK + Agg<char> c3 = {300}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} expected-warning {{changes value}} + + Agg<int> i2 = {0x7FFFFFFFU}; // OK + Agg<int> i3 = {0x80000000U}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<unsigned int> i4 = {-0x80000000L}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + // Bool is also an integer type, but conversions to it are a different AST + // node. + Agg<bool> b1 = {0}; // OK + Agg<bool> b2 = {1}; // OK + Agg<bool> b3 = {-1}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + + // Conversions from pointers to booleans aren't narrowing conversions. + Agg<bool> b = {&b1}; // OK + + Agg<short> ce1 = { Convert<int>(100000) }; // expected-warning {{constant expression evaluates to 100000 which cannot be narrowed to type 'short'}} expected-note {{override}} expected-warning {{changes value from 100000 to -31072}} + Agg<char> ce2 = { ConvertVar<short>() }; // expected-warning {{non-constant-expression cannot be narrowed from type 'short' to 'char'}} expected-note {{override}} +} + +// Be sure that type- and value-dependent expressions in templates get the warning +// too. + +template<int I, typename T> +void maybe_shrink_int(T t) { + Agg<short> s1 = {t}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} + Agg<short> s2 = {I}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} expected-warning {{changes value}} + Agg<T> t2 = {700}; // expected-warning {{ cannot be narrowed }} expected-note {{override}} expected-warning {{changes value}} +} + +void test_template() { + maybe_shrink_int<15>((int)3); // expected-note {{in instantiation}} + maybe_shrink_int<70000>((char)3); // expected-note {{in instantiation}} +} + + +// We don't want qualifiers on the types in the diagnostic. + +void test_qualifiers(int i) { + const int j = i; + struct {const unsigned char c;} c1 = {j}; // expected-warning {{from type 'int' to 'unsigned char' in}} expected-note {{override}} + // Template arguments make it harder to avoid printing qualifiers: + Agg<const unsigned char> c2 = {j}; // expected-warning {{from type 'int' to 'const unsigned char' in}} expected-note {{override}} +} + +// Make sure we still get the right SFINAE behavior. +template<unsigned> struct Value { }; + +template<typename T> +int &check_narrowed(Value<sizeof((T){1.1})>); + +template<typename T> +float &check_narrowed(...); + +void test_narrowed(Value<sizeof(int)> vi, Value<sizeof(double)> vd) { + int &ir = check_narrowed<double>(vd); + float &fr = check_narrowed<int>(vi); +} diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp index 95cc56cbab536..adbdff6efe3c6 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-0x.cpp @@ -1,6 +1,6 @@ // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -pedantic %s -// Test the C++0x-specific reference initialization rules, e.g., the +// Test the c++0x-specific reference initialization rules, e.g., the // rules for rvalue references. template<typename T> T prvalue(); template<typename T> T&& xvalue(); diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx03-extra-copy.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx03-extra-copy.cpp index 8c654110fa24d..d58a12953e0d0 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx03-extra-copy.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.ref/p5-cxx03-extra-copy.cpp @@ -30,7 +30,7 @@ template<typename T> T get_value_badly() { double *dp = 0; // The extension doesn't extend far enough to turn this error into a warning. - T *tp = dp; // expected-error{{ cannot initialize a variable of type 'int *' with an lvalue of type 'double *'}} + T *tp = dp; // expected-error{{cannot initialize a variable of type 'int *' with an lvalue of type 'double *'}} return T(); } @@ -54,7 +54,7 @@ void g5(const X5&); void test() { g1(X1()); - g2(X2()); // expected-warning{{C++98 requires an accessible copy constructor for class 'X2' when binding a reference to a temporary; was private [-Wbind-to-temporary-copy]}} + g2(X2()); // expected-warning{{C++98 requires an accessible copy constructor for class 'X2' when binding a reference to a temporary; was private}} g3(X3()); // expected-warning{{no viable constructor copying parameter of type 'X3'}} g4(X4<int>()); g5(X5()); // Generates a warning in the default argument. diff --git a/test/CXX/dcl.decl/dcl.init/dcl.init.string/p1.cpp b/test/CXX/dcl.decl/dcl.init/dcl.init.string/p1.cpp index 07a5cef304782..3631af1b7fd2f 100644 --- a/test/CXX/dcl.decl/dcl.init/dcl.init.string/p1.cpp +++ b/test/CXX/dcl.decl/dcl.init/dcl.init.string/p1.cpp @@ -5,3 +5,15 @@ extern char x1[6]; char x2[] = "hello"; extern char x2[6]; + +char x3[] = { "hello" }; +extern char x3[6]; + +wchar_t x4[](L"hello"); +extern wchar_t x4[6]; + +wchar_t x5[] = L"hello"; +extern wchar_t x5[6]; + +wchar_t x6[] = { L"hello" }; +extern wchar_t x6[6]; diff --git a/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6-0x.cpp b/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6-0x.cpp index ce0a082462a21..2ec1454100b69 100644 --- a/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6-0x.cpp +++ b/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6-0x.cpp @@ -1,20 +1,45 @@ // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s -void f0() &; // expected-error{{ref-qualifier '&' is only allowed on non-static member functions, member function pointers, and typedefs of function types}} -void f1() &&; // expected-error{{ref-qualifier '&&' is only allowed on non-static member functions, member function pointers, and typedefs of function types}} +void f0() &; // expected-error {{non-member function cannot have '&' qualifier}} +void f1() &&; // expected-error {{non-member function cannot have '&&' qualifier}} +void f2() const volatile &&; // expected-error {{non-member function cannot have 'const volatile &&' qualifier}} struct X { - void f0() &; + void f0() &; void f1() &&; - static void f2() &; // expected-error{{ref-qualifier '&' is only allowed on non-static member functions, member function pointers, and typedefs of function types}} - static void f3() &&; // expected-error{{ref-qualifier '&&' is only allowed on non-static member functions, member function pointers, and typedefs of function types}} + static void f2() &; // expected-error{{static member function cannot have '&' qualifier}} + static void f3() &&; // expected-error{{static member function cannot have '&&' qualifier}} }; typedef void func_type_lvalue() &; typedef void func_type_rvalue() &&; -func_type_lvalue f2; // expected-error{{nonmember function cannot have a ref-qualifier '&'}} -func_type_rvalue f3; // expected-error{{nonmember function cannot have a ref-qualifier '&&'}} +typedef func_type_lvalue *func_type_lvalue_ptr; // expected-error{{pointer to function type 'func_type_lvalue' (aka 'void () &') cannot have '&' qualifier}} +typedef func_type_rvalue *func_type_rvalue_ptr; // expected-error{{pointer to function type 'func_type_rvalue' (aka 'void () &&') cannot have '&&' qualifier}} + +typedef func_type_lvalue &func_type_lvalue_ref; // expected-error{{reference to function type 'func_type_lvalue' (aka 'void () &') cannot have '&' qualifier}} +typedef func_type_rvalue &func_type_rvalue_ref; // expected-error{{reference to function type 'func_type_rvalue' (aka 'void () &&') cannot have '&&' qualifier}} + +template<typename T = func_type_lvalue> struct wrap { + typedef T val; + typedef T *ptr; + typedef T &ref; +}; + +using func_type_lvalue = wrap<>::val; +using func_type_lvalue = wrap<func_type_lvalue>::val; +using func_type_rvalue = wrap<func_type_rvalue>::val; + +using func_type_lvalue_ptr = wrap<>::ptr; +using func_type_lvalue_ptr = wrap<func_type_lvalue>::ptr; +using func_type_rvalue_ptr = wrap<func_type_rvalue>::ptr; + +using func_type_lvalue_ref = wrap<>::ref; +using func_type_lvalue_ref = wrap<func_type_lvalue>::ref; +using func_type_rvalue_ref = wrap<func_type_rvalue>::ref; + +func_type_lvalue f2; // expected-error{{non-member function of type 'func_type_lvalue' (aka 'void () &') cannot have '&' qualifier}} +func_type_rvalue f3; // expected-error{{non-member function of type 'func_type_rvalue' (aka 'void () &&') cannot have '&&' qualifier}} struct Y { func_type_lvalue f0; @@ -25,4 +50,4 @@ void (X::*mpf1)() & = &X::f0; void (X::*mpf2)() && = &X::f1; -void (f() &&); // expected-error{{ref-qualifier '&&' is only allowed on non-static member functions, member function pointers, and typedefs of function types}} +void (f() &&); // expected-error{{non-member function cannot have '&&' qualifier}} diff --git a/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6.cpp b/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6.cpp index 4873c095a0ebf..e2d94fbf3811a 100644 --- a/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6.cpp +++ b/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p6.cpp @@ -1,14 +1,20 @@ // RUN: %clang_cc1 -fsyntax-only -verify %s -void f() const; // expected-error{{type qualifier is not allowed on this function}} +typedef void F() const; + +void f() const; // expected-error {{non-member function cannot have 'const' qualifier}} +F g; // expected-error {{non-member function of type 'F' (aka 'void () const') cannot have 'const' qualifier}} struct X { void f() const; - friend void g() const; // expected-error{{type qualifier is not allowed on this function}} - static void h() const; // expected-error{{type qualifier is not allowed on this function}} + friend void g() const; // expected-error {{non-member function cannot have 'const' qualifier}} + static void h() const; // expected-error {{static member function cannot have 'const' qualifier}} + F i; // ok + friend F j; // expected-error {{non-member function of type 'F' (aka 'void () const') cannot have 'const' qualifier}} + static F k; // expected-error {{static member function of type 'F' (aka 'void () const') cannot have 'const' qualifier}} }; struct Y { friend void X::f() const; - friend void ::f() const; // expected-error{{type qualifier is not allowed on this function}} + friend void ::f() const; // expected-error {{non-member function cannot have 'const' qualifier}} }; diff --git a/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p9-0x.cpp b/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p9-0x.cpp index 4d71a8e4b4c63..574a3e7a79341 100644 --- a/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p9-0x.cpp +++ b/test/CXX/dcl.decl/dcl.meaning/dcl.fct/p9-0x.cpp @@ -1,3 +1,3 @@ // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s -auto j() -> enum { e3 }; // expected-error{{can not be defined in a type specifier}} +auto j() -> enum { e3 }; // expected-error{{unnamed enumeration must be a definition}} expected-error {{requires a specifier or qualifier}} expected-error {{without trailing return type}} diff --git a/test/CXX/dcl.decl/dcl.meaning/dcl.ref/p5.cpp b/test/CXX/dcl.decl/dcl.meaning/dcl.ref/p5.cpp index aaf7451424019..c02105ca76cfa 100644 --- a/test/CXX/dcl.decl/dcl.meaning/dcl.ref/p5.cpp +++ b/test/CXX/dcl.decl/dcl.meaning/dcl.ref/p5.cpp @@ -12,7 +12,7 @@ typedef intref &intrefref; template <class T> class RefMem { // expected-warning{{class 'RefMem<int &>' does not declare any constructor to initialize its non-modifiable members}} T & - member; // expected-note{{ reference member 'member' will never be initialized}} + member; // expected-note{{reference member 'member' will never be initialized}} }; struct RefRef { diff --git a/test/CXX/dcl.decl/dcl.meaning/p1-0x.cpp b/test/CXX/dcl.decl/dcl.meaning/p1-0x.cpp new file mode 100644 index 0000000000000..99334b845aba2 --- /dev/null +++ b/test/CXX/dcl.decl/dcl.meaning/p1-0x.cpp @@ -0,0 +1,24 @@ +// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s + +// The nested-name-specifier of a qualified declarator-id shall not begin with a decltype-specifier. +class foo { + static int i; + void func(); +}; + +int decltype(foo())::i; // expected-error{{'decltype' cannot be used to name a declaration}} +void decltype(foo())::func() { // expected-error{{'decltype' cannot be used to name a declaration}} +} + + +template<typename T> +class tfoo { + static int i; + void func(); +}; + +template<typename T> +int decltype(tfoo<T>())::i; // expected-error{{nested name specifier 'decltype(tfoo<T>())::' for declaration does not refer into a class, class template or class template partial specialization}} +template<typename T> +void decltype(tfoo<T>())::func() { // expected-error{{nested name specifier 'decltype(tfoo<T>())::' for declaration does not refer into a class, class template or class template partial specialization}} +} diff --git a/test/CXX/dcl.decl/dcl.meaning/p1.cpp b/test/CXX/dcl.decl/dcl.meaning/p1.cpp new file mode 100644 index 0000000000000..3672ea0ea086a --- /dev/null +++ b/test/CXX/dcl.decl/dcl.meaning/p1.cpp @@ -0,0 +1,37 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +namespace PR8019 { + struct x; + template<typename T> struct x2; + struct y { + struct PR8019::x { int x; }; // expected-error{{non-friend class member 'x' cannot have a qualified name}} + + struct inner; + struct y::inner { }; // expected-warning{{extra qualification on member 'inner'}} + + template<typename T> + struct PR8019::x2 { }; // expected-error{{non-friend class member 'x2' cannot have a qualified name}} + + template<typename T> + struct inner_template; + + template<typename T> + struct y::inner_template { }; // expected-warning{{extra qualification on member 'inner_template'}} + }; + +} + +namespace NS { + void foo(); + extern int bar; + struct X; + template<typename T> struct Y; + template<typename T> void wibble(T); +} +namespace NS { + void NS::foo() {} // expected-warning{{extra qualification on member 'foo'}} + int NS::bar; // expected-warning{{extra qualification on member 'bar'}} + struct NS::X { }; // expected-warning{{extra qualification on member 'X'}} + template<typename T> struct NS::Y; // expected-warning{{extra qualification on member 'Y'}} + template<typename T> void NS::wibble(T) { } // expected-warning{{extra qualification on member 'wibble'}} +} diff --git a/test/CXX/dcl.decl/dcl.name/p1.cpp b/test/CXX/dcl.decl/dcl.name/p1.cpp index 7586007cc7b38..9838b4f4737db 100644 --- a/test/CXX/dcl.decl/dcl.name/p1.cpp +++ b/test/CXX/dcl.decl/dcl.name/p1.cpp @@ -2,15 +2,19 @@ namespace pr6200 { struct v {}; + enum E { e }; struct s { int i; operator struct v() { return v(); }; + operator enum E() { return e; } }; void f() { - // Neither of these is a declaration. + // None of these is a declaration. (void)new struct s; + (void)new enum E; (void)&s::operator struct v; + (void)&s::operator enum E; } } |