llvm-project/overloaded-builtin-operators-cxx17.cpp at 761787d42576751afbaaba5107233ee849f81b6f - llvm-project - Gitea For EOELAB

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Jan Korous 536d2e3072 [Sema] Disable built-in increment operator for bool in overload resolution in C++17

Following: https://llvm.org/svn/llvm-project/cfe/trunk@329804

For C++17 the wording of [over.built] p4 excluded bool:

For every pair (T , vq), where T is an arithmetic type other than bool, there exist
candidate operator functions of the form
  vq T & operator++(vq T &);
  T operator++(vq T &, int);

Differential Revision: https://reviews.llvm.org/D45569

llvm-svn: 330254

2018-04-18 13:38:39 +00:00

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 // 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'}}
 }