derek.holloway
7502bf64a4
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57 lines
3.2 KiB
C++
57 lines
3.2 KiB
C++
// RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
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// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s
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// RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s
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// RUN: %clang_cc1 -std=c++17 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s
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// RUN: %clang_cc1 -std=c++20 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s
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// RUN: %clang_cc1 -std=c++23 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s
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// RUN: %clang_cc1 -std=c++26 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s
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// expected-no-diagnostics
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// cwg722: 20
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#if __cplusplus >= 201103L
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namespace std {
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using nullptr_t = decltype(nullptr);
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} // namespace std
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void f(std::nullptr_t, ...);
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std::nullptr_t g();
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void h() {
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std::nullptr_t np;
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const std::nullptr_t cnp = nullptr;
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extern int i;
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f(
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nullptr,
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nullptr, np, cnp,
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static_cast<std::nullptr_t>(np),
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g(),
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__builtin_bit_cast(std::nullptr_t, static_cast<void*>(&i))
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);
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// CHECK: `-CallExpr {{.+}} 'void'
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// CHECK-NEXT: |-ImplicitCastExpr {{.+}} 'void (*)(std::nullptr_t, ...)' <FunctionToPointerDecay>
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// CHECK-NEXT: | `-DeclRefExpr {{.+}} 'void (std::nullptr_t, ...)' lvalue Function {{.+}} 'f' 'void (std::nullptr_t, ...)'
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// CHECK-NEXT: |-CXXNullPtrLiteralExpr {{.+}} 'std::nullptr_t'
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// CHECK-NEXT: |-ImplicitCastExpr {{.+}} 'void *' <NullToPointer>
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// CHECK-NEXT: | `-CXXNullPtrLiteralExpr {{.+}} 'std::nullptr_t'
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// CHECK-NEXT: |-ImplicitCastExpr {{.+}} 'void *' <NullToPointer>
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// CHECK-NEXT: | `-DeclRefExpr {{.+}} 'std::nullptr_t' lvalue Var {{.+}} 'np' 'std::nullptr_t'
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// CHECK-NEXT: |-ImplicitCastExpr {{.+}} 'void *' <NullToPointer>
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// CHECK-NEXT: | `-DeclRefExpr {{.+}} 'const std::nullptr_t' lvalue Var {{.+}} 'cnp' 'const std::nullptr_t'
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// CHECK-NEXT: |-ImplicitCastExpr {{.+}} 'void *' <NullToPointer>
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// CHECK-NEXT: | `-CXXStaticCastExpr {{.+}} 'std::nullptr_t' static_cast<std::nullptr_t> <NoOp>
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// CHECK-NEXT: | `-ImplicitCastExpr {{.+}} 'std::nullptr_t' <NullToPointer> part_of_explicit_cast
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// CHECK-NEXT: | `-DeclRefExpr {{.+}} 'std::nullptr_t' lvalue Var {{.+}} 'np' 'std::nullptr_t'
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// CHECK-NEXT: |-ImplicitCastExpr {{.+}} 'void *' <NullToPointer>
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// CHECK-NEXT: | `-CallExpr {{.+}} 'std::nullptr_t'
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// CHECK-NEXT: | `-ImplicitCastExpr {{.+}} 'std::nullptr_t (*)()' <FunctionToPointerDecay>
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// CHECK-NEXT: | `-DeclRefExpr {{.+}} 'std::nullptr_t ()' lvalue Function {{.+}} 'g' 'std::nullptr_t ()'
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// CHECK-NEXT: `-ImplicitCastExpr {{.+}} 'void *' <NullToPointer>
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// CHECK-NEXT: `-BuiltinBitCastExpr {{.+}} 'std::nullptr_t' <LValueToRValueBitCast>
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// CHECK-NEXT: `-MaterializeTemporaryExpr {{.+}} 'void *' xvalue
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// CHECK-NEXT: `-CXXStaticCastExpr {{.+}} 'void *' static_cast<void *> <NoOp>
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// CHECK-NEXT: `-ImplicitCastExpr {{.+}} 'void *' <BitCast> part_of_explicit_cast
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// CHECK-NEXT: `-UnaryOperator {{.+}} 'int *' prefix '&' cannot overflow
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// CHECK-NEXT: `-DeclRefExpr {{.+}} 'int' lvalue Var {{.+}} 'i' 'int'
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}
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#endif
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