35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
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// RUN: %clang_cc1 -std=c++2a -verify %s
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template<int N> struct A {};
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using F = bool(*)(int);
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extern F *p;
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extern int m;
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struct Convertible { template<typename T> operator T(); };
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void f() {
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int arr1[3];
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for (int n = 5; int x : arr1) {}
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int A<0>::*arr2[3];
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for (int n = 5; int A<true ? 0 : 1>::*x : arr2) {}
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F (*arr3[3])(int);
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for (int n = 5; F (*p)(int n) : arr3) {}
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for (int n = 5; F (*p)(int (n)) : arr3) {}
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// Here, we have a declaration rather than an expression.
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for (int n = 5; F (*p)(int (n)); ++n) {}
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// We detect whether we have a for-range-declaration before parsing so that
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// we can give different diagnostics for for-range-declarations versus
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// conditions (even though the rules are currently identical).
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Convertible arr4[3];
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for (int n = 0; struct { operator bool(); } x = {}; ++n) {} // expected-error {{cannot be defined in a condition}}
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for (int n = 0; struct { operator bool(); } x : arr4) {} // expected-error {{may not be defined in a for range declaration}}
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for (int n = 0; static int m = 0; ++n) {} // expected-error {{type name does not allow storage class}}
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for (int n = 0; static int m : arr1) {} // expected-error {{loop variable 'm' may not be declared 'static'}}
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}
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