bd5b22070b
The syntax rules for ptr-operator allow attributes after *, &,
&&, therefore we should be able to parse the following:
void fn() {
void (*[[attr]] x)() = &fn;
void (&[[attr]] y)() = fn;
void (&&[[attr]] z)() = fn;
}
However the current logic in TryParsePtrOperatorSeq does not consider
the presence of attributes leading to unexpected parsing errors.
Moreover we should also consider _Atomic a possible qualifier that can
appear after the sequence of attribute specifiers.
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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struct X {
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template<typename T, typename U>
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static void f(int, int);
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};
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void f() {
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void (*ptr)(int, int) = &X::f<int, int>;
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unknown *p = 0; // expected-error {{unknown type name 'unknown'}}
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unknown * p + 0; // expected-error {{undeclared identifier 'unknown'}}
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}
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auto (*p)() -> int(nullptr);
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auto (*q)() -> int(*)(unknown); // expected-error {{unknown type name 'unknown'}}
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auto (*r)() -> int(*)(unknown + 1); // expected-error {{undeclared identifier 'unknown'}}
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int f(unknown const x); // expected-error {{unknown type name 'unknown'}}
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// Disambiguating an array declarator from an array subscripting.
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void arr() {
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int x[] = {1}; // expected-note 2{{previous}}
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// This is array indexing not an array declarator because a comma expression
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// is not syntactically a constant-expression.
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int(x[1,1]); // expected-warning 2{{unused}}
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// This is array indexing not an array declaration because a braced-init-list
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// is not syntactically a constant-expression.
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int(x[{0}]); // expected-error {{array subscript is not an integer}}
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struct A {
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struct Q { int n; };
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int operator[](Q);
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} a;
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int(a[{0}]); // expected-warning {{unused}}
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// These are array declarations.
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int(x[(1,1)]); // expected-error {{redefinition}}
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int(x[true ? 1,1 : 1]); // expected-error {{redefinition}}
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int (*_Atomic atomic_ptr_to_int);
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*atomic_ptr_to_int = 42;
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}
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