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// RUN: %clang_cc1 -std=c++2c -verify -fsyntax-only %s
template <unsigned N>
void decompose_array() {
int arr[4] = {1, 2, 3, 5};
auto [x, ... // #1
rest, ...more_rest] = arr; // expected-error{{multiple packs in structured binding declaration}}
// expected-note@#1{{previous binding pack specified here}}
auto [y...] = arr; // expected-error{{'...' must immediately precede declared identifier}}
auto [...] = arr; // #2
// expected-error@#2{{expected identifier}}
// expected-error@#2{{{no names were provided}}}
// expected-warning@#2{{{does not allow a decomposition group to be empty}}}
auto [a, ..., b] = arr; // #3
// expected-error@#3{{expected identifier}}
// expected-error@#3{{{only 1 name was provided}}}
auto [a1, ...] = arr; // #4
// expected-error@#4{{expected identifier}}
// expected-error@#4{{{only 1 name was provided}}}
auto [..., b] = arr; // #5
// expected-error@#5{{expected identifier}}
// expected-error@#5{{{no names were provided}}}
}
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