llvm-project/clang/test/Parser/cxx-ambig-paren-expr.cpp

67 lines
1.3 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -pedantic -verify %s
void f() {
typedef int T;
int x, *px;
// Type id.
(T())x; // expected-error {{cast from 'int' to 'T ()'}}
(T())+x; // expected-error {{cast from 'int' to 'T ()'}}
(T())*px; // expected-error {{cast from 'int' to 'T ()'}}
// Expression.
x = (T());
x = (T())/x;
typedef int *PT;
// Make sure stuff inside the parens are parsed only once (only one warning).
x = (PT()[(int){1}]); // expected-warning {{compound literals}}
// Special case: empty parens is a call, not an expression
struct S{int operator()();};
(S())();
// FIXME: Special case: "++" is postfix here, not prefix
// (S())++;
}
// Make sure we do tentative parsing correctly in conditions.
typedef int type;
struct rec { rec(int); };
namespace ns {
typedef int type;
struct rec { rec(int); };
}
struct cls {
typedef int type;
struct rec { rec(int); };
};
struct result {
template <class T> result(T);
bool check();
};
void test(int i) {
if (result((cls::type) i).check())
return;
if (result((ns::type) i).check())
return;
if (result((::type) i).check())
return;
if (result((cls::rec) i).check())
return;
if (result((ns::rec) i).check())
return;
if (result((::rec) i).check())
return;
}