diff options
| -rw-r--r-- | clang/lib/Sema/SemaOverload.cpp | 16 | ||||
| -rw-r--r-- | clang/test/SemaCXX/overloaded-builtin-operators-cxx17.cpp | 10 |
2 files changed, 21 insertions, 5 deletions
diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp index 9cce75c7197..64cd52c1f65 100644 --- a/clang/lib/Sema/SemaOverload.cpp +++ b/clang/lib/Sema/SemaOverload.cpp @@ -7782,11 +7782,13 @@ public: InitArithmeticTypes(); } + // Increment is deprecated for bool since C++17. + // // C++ [over.built]p3: // - // For every pair (T, VQ), where T is an arithmetic type, and VQ - // is either volatile or empty, there exist candidate operator - // functions of the form + // For every pair (T, VQ), where T is an arithmetic type other + // than bool, and VQ is either volatile or empty, there exist + // candidate operator functions of the form // // VQ T& operator++(VQ T&); // T operator++(VQ T&, int); @@ -7805,8 +7807,12 @@ public: for (unsigned Arith = 0; Arith < NumArithmeticTypes; ++Arith) { const auto TypeOfT = ArithmeticTypes[Arith]; - if (Op == OO_MinusMinus && TypeOfT == S.Context.BoolTy) - continue; + if (TypeOfT == S.Context.BoolTy) { + if (Op == OO_MinusMinus) + continue; + if (Op == OO_PlusPlus && S.getLangOpts().CPlusPlus17) + continue; + } addPlusPlusMinusMinusStyleOverloads( TypeOfT, VisibleTypeConversionsQuals.hasVolatile(), diff --git a/clang/test/SemaCXX/overloaded-builtin-operators-cxx17.cpp b/clang/test/SemaCXX/overloaded-builtin-operators-cxx17.cpp new file mode 100644 index 00000000000..05f85f88ccd --- /dev/null +++ b/clang/test/SemaCXX/overloaded-builtin-operators-cxx17.cpp @@ -0,0 +1,10 @@ +// RUN: %clang_cc1 -fsyntax-only -fshow-overloads=best -verify -triple x86_64-linux-gnu -std=c++17 %s + +struct BoolRef { + operator bool&(); +}; + +void foo(BoolRef br) { + // C++ [over.built]p3: Increment for bool was removed in C++17. + bool b = br++; // expected-error{{cannot increment value of type 'BoolRef'}} +}
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