llvm-for-llvmta/tools/clang/test/Parser/cxx-concepts-ambig-constrai...

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C++

// RUN: %clang_cc1 -std=c++2a -x c++ %s -verify
// Test parsing of constraint-expressions in cases where the grammar is
// ambiguous with the expectation that the longest token sequence which matches
// the syntax is consumed without backtracking.
// type-specifier-seq in conversion-type-id
template <typename T> requires T::operator short
unsigned int foo(); // expected-error {{C++ requires a type specifier for all declarations}}