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// RUN: %clang_cc1 -verify -std=c++17 -pedantic-errors %s
// RUN: cp %s %t
// RUN: not %clang_cc1 -x c++ -std=c++17 -fixit %t
// RUN: %clang_cc1 -Wall -pedantic-errors -x c++ -std=c++17 %t
/* This is a test of the various code modification hints that only
apply in C++17. */
template<int... args>
int foo() {
int a = (args + 1 + ...); // expected-error {{expression not permitted as operand of fold expression}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:14-[[@LINE-1]]:14}:"("
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:22-[[@LINE-2]]:22}:")"
int b = (args + 123 + ...); // expected-error {{expression not permitted as operand of fold expression}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:14-[[@LINE-1]]:14}:"("
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:24-[[@LINE-2]]:24}:")"
int c = (args + 1 + 2 + ...); // expected-error {{expression not permitted as operand of fold expression}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:14-[[@LINE-1]]:14}:"("
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:26-[[@LINE-2]]:26}:")"
int e = (... + 1 + args); // expected-error {{expression not permitted as operand of fold expression}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:20-[[@LINE-1]]:20}:"("
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:28-[[@LINE-2]]:28}:")"
int f = (1 + ... + args + 1); // expected-error {{expression not permitted as operand of fold expression}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:24-[[@LINE-1]]:24}:"("
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:32-[[@LINE-2]]:32}:")"
int g = (args + 1 + ... + 1); // expected-error {{expression not permitted as operand of fold expression}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:14-[[@LINE-1]]:14}:"("
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:22-[[@LINE-2]]:22}:")"
return a + b + c + e + f + g;
}
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