69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// RUN: %clang_cc1 -std=c++1y %s -verify -triple=x86_64-linux-gnu -pedantic-errors
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// FIXME: many diagnostics here say 'variably modified type'.
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// catch this case and say 'array of runtime bound' instead.
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namespace std { struct type_info; }
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struct S {
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int arr[__SIZE_MAX__ / 32];
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};
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S s[32]; // expected-error {{array is too large}}
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int n;
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int a[n]; // expected-error {{not allowed at file scope}}
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struct T {
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int a[n]; // expected-error {{fields must have a constant size}}
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static int b[n]; // expected-error {{not allowed at file scope}}
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};
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int g(int n, int a[n]);
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template<typename T> struct X {};
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template<int N, int[N]> struct Y {};
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template<int[n]> struct Z {}; // expected-error {{of variably modified type}}
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int f(int n) {
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int arb[n]; // expected-note 3{{here}}
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[arb] {} (); // expected-error {{cannot be captured}}
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// FIXME: an array of runtime bound can be captured by reference.
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[&arb] { // expected-error {{cannot be captured}}
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// Capturing the array implicitly captures the bound, if we need it
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// in a range-based for loop.
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for (auto &n : arb) { } // expected-error {{cannot be captured}}
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} ();
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X<int[n]> x; // expected-error {{variably modified type}}
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int arb_neg[-1]; // expected-error {{negative size}}
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int arb_of_array[n][2];
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int arr[3] = { 1, 2, 3, 4 }; // expected-error {{excess elements}}
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char foo[4] = "fool"; // expected-error {{initializer-string for char array is too long}}
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static int not_auto1[n]; // expected-error {{can not have 'static'}}
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extern int not_auto2[n]; // expected-error {{can not have 'extern'}}
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// FIXME: say 'thread_local' not 'static'.
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thread_local int not_auto1[n]; // expected-error {{can not have 'static'}}
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// FIXME: these should all be invalid.
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auto &&ti1 = typeid(arb);
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auto &&ti2 = typeid(int[n]);
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auto &&so1 = sizeof(arb);
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auto &&so2 = sizeof(int[n]);
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auto *p = &arb;
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decltype(arb) arb2;
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int (*arbp)[n] = 0;
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const int (&arbr)[n] = arbr; // expected-warning {{not yet bound}}
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typedef int arbty[n];
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int array_of_arb[2][n];
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struct Dyn { Dyn() {} Dyn(int) {} ~Dyn() {} };
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// FIXME: these should be valid.
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int arb_dynamic[n] = { 1, 2, 3, 4 }; // expected-error {{may not be initialized}}
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Dyn dyn[n]; // expected-error {{non-POD}}
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Dyn dyn_init[n] = { 1, 2, 3, 4 }; // expected-error {{non-POD}}
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}
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