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// I, Howard Hinnant, hereby place this code in the public domain.

// Test overload resolution among reference types

// { dg-do compile }
// { dg-options "-std=c++0x" }

template <bool> struct sa;
template <> struct sa<true> {};

struct one   {char x[1];};
struct two   {char x[2];};
struct three {char x[3];};
struct four  {char x[4];};
struct five  {char x[5];};
struct six   {char x[6];};
struct seven {char x[7];};
struct eight {char x[8];};

struct A
{
    A();
    A(const volatile A&&);
};

               A    source();
const          A  c_source();
      volatile A  v_source();
const volatile A cv_source();

// 5 at a time

one   sink_5_12345(               A&);  // { dg-message "one sink_5_12345|no known conversion" }
two   sink_5_12345(const          A&);  // { dg-message "note" }
three sink_5_12345(volatile       A&);  // { dg-message "note" }
four  sink_5_12345(const volatile A&);  // { dg-message "note" }
five  sink_5_12345(               A&&);  // { dg-message "note" }

int test5_12345()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12345(v_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 45 }
    sink_5_12345(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 47 }
    return 0;
}

one   sink_5_12346(               A&);  // { dg-message "one sink_5_12346|no known conversion" }
two   sink_5_12346(const          A&);  // { dg-message "note" }
three sink_5_12346(volatile       A&);  // { dg-message "note" }
four  sink_5_12346(const volatile A&);  // { dg-message "note" }
six   sink_5_12346(const          A&&);  // { dg-message "note" }

int test5_12346()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12346(v_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 64 }
    sink_5_12346(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 66 }
    return 0;
}

one   sink_5_12347(               A&);  // { dg-message "one sink_5_12347|no known conversion" }
two   sink_5_12347(const          A&);  // { dg-message "note" }
three sink_5_12347(volatile       A&);  // { dg-message "note" }
four  sink_5_12347(const volatile A&);  // { dg-message "note" }
seven sink_5_12347(volatile       A&&);  // { dg-message "note" }

int test5_12347()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12347(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 83 }
    return 0;
}

one   sink_5_12356(               A&);  // { dg-message "one sink_5_12356|no known conversion" }
two   sink_5_12356(const          A&);  // { dg-message "note" }
three sink_5_12356(volatile       A&);  // { dg-message "note" }
five  sink_5_12356(               A&&);  // { dg-message "note" }
six   sink_5_12356(const          A&&);  // { dg-message "note" }

int test5_12356()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12356(cva);          // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 100 }
    sink_5_12356(v_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 102 }
    sink_5_12356(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 104 }
    return 0;
}

one   sink_5_12357(               A&);  // { dg-message "one sink_5_12357|no known conversion" }
two   sink_5_12357(const          A&);  // { dg-message "note" }
three sink_5_12357(volatile       A&);  // { dg-message "note" }
five  sink_5_12357(               A&&);  // { dg-message "note" }
seven sink_5_12357(volatile       A&&);  // { dg-message "note" }

int test5_12357()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12357(cva);          // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 121 }
    sink_5_12357(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 123 }
    return 0;
}

one   sink_5_12358(               A&);
two   sink_5_12358(const          A&);
three sink_5_12358(volatile       A&);
five  sink_5_12358(               A&&);
eight sink_5_12358(const volatile A&&); // { dg-message "" }

int test5_12358()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12358(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_12367(               A&);  // { dg-message "one sink_5_12367|no known conversion" }
two   sink_5_12367(const          A&);  // { dg-message "note" }
three sink_5_12367(volatile       A&);  // { dg-message "note" }
six   sink_5_12367(const          A&&);  // { dg-message "note" }
seven sink_5_12367(volatile       A&&);  // { dg-message "note" }

int test5_12367()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12367(cva);          // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 156 }
    sink_5_12367(source());     // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 158 }
    sink_5_12367(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 160 }
    return 0;
}

one   sink_5_12368(               A&);
two   sink_5_12368(const          A&);
three sink_5_12368(volatile       A&);
six   sink_5_12368(const          A&&);
eight sink_5_12368(const volatile A&&); // { dg-message "" }

int test5_12368()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12368(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_12378(               A&);
two   sink_5_12378(const          A&);
three sink_5_12378(volatile       A&);
seven sink_5_12378(volatile       A&&);
eight sink_5_12378(const volatile A&&); // { dg-message "" }

int test5_12378()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12378(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_12456(               A&);  // { dg-message "one sink_5_12456|no known conversion" }
two   sink_5_12456(const          A&);  // { dg-message "note" }
four  sink_5_12456(const volatile A&);  // { dg-message "note" }
five  sink_5_12456(               A&&);  // { dg-message "note" }
six   sink_5_12456(const          A&&);  // { dg-message "note" }

int test5_12456()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12456(v_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 209 }
    sink_5_12456(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 211 }
    return 0;
}

one   sink_5_12457(               A&);  // { dg-message "one sink_5_12457|no known conversion" }
two   sink_5_12457(const          A&);  // { dg-message "note" }
four  sink_5_12457(const volatile A&);  // { dg-message "note" }
five  sink_5_12457(               A&&);  // { dg-message "note" }
seven sink_5_12457(volatile       A&&);  // { dg-message "note" }

int test5_12457()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12457(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 228 }
    return 0;
}

one   sink_5_12467(               A&);  // { dg-message "one sink_5_12467|no known conversion" }
two   sink_5_12467(const          A&);  // { dg-message "note" }
four  sink_5_12467(const volatile A&);  // { dg-message "note" }
six   sink_5_12467(const          A&&);  // { dg-message "note" }
seven sink_5_12467(volatile       A&&);  // { dg-message "note" }

int test5_12467()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12467(source());     // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 245 }
    sink_5_12467(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 247 }
    return 0;
}

one   sink_5_12567(               A&);  // { dg-message "one sink_5_12567|no known conversion" }
two   sink_5_12567(const          A&);  // { dg-message "note" }
five  sink_5_12567(               A&&);  // { dg-message "note" }
six   sink_5_12567(const          A&&);  // { dg-message "note" }
seven sink_5_12567(volatile       A&&);  // { dg-message "" }

int test5_12567()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12567(va);           // { dg-error "lvalue" }
    sink_5_12567(cva);          // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 265 }
    sink_5_12567(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 267 }
    return 0;
}

one   sink_5_12568(               A&);
two   sink_5_12568(const          A&);
five  sink_5_12568(               A&&);
six   sink_5_12568(const          A&&);
eight sink_5_12568(const volatile A&&); // { dg-message "" }

int test5_12568()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12568(va);           // { dg-error "lvalue" }
    sink_5_12568(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_12578(               A&);
two   sink_5_12578(const          A&);
five  sink_5_12578(               A&&);
seven sink_5_12578(volatile       A&&); // { dg-message "" }
eight sink_5_12578(const volatile A&&); // { dg-message "" }

int test5_12578()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12578(va);           // { dg-error "lvalue" }
    sink_5_12578(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_12678(               A&);
two   sink_5_12678(const          A&);  // { dg-message "note" }
six   sink_5_12678(const          A&&);  // { dg-message "note" }
seven sink_5_12678(volatile       A&&);  // { dg-message "" }
eight sink_5_12678(const volatile A&&);  // { dg-message "" }

int test5_12678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_12678(va);           // { dg-error "lvalue" }
    sink_5_12678(cva);          // { dg-error "lvalue" }
    sink_5_12678(source());  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 320 }
    return 0;
}

one   sink_5_13456(               A&);  // { dg-message "one sink_5_13456|no known conversion" }
three sink_5_13456(volatile       A&);  // { dg-message "note" }
four  sink_5_13456(const volatile A&);  // { dg-message "note" }
five  sink_5_13456(               A&&);  // { dg-message "note" }
six   sink_5_13456(const          A&&);  // { dg-message "note" }

int test5_13456()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13456(v_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 337 }
    sink_5_13456(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 339 }
    return 0;
}

one   sink_5_13457(               A&);  // { dg-message "one sink_5_13457|no known conversion" }
three sink_5_13457(volatile       A&);  // { dg-message "note" }
four  sink_5_13457(const volatile A&);  // { dg-message "note" }
five  sink_5_13457(               A&&);  // { dg-message "note" }
seven sink_5_13457(volatile       A&&);  // { dg-message "note" }

int test5_13457()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13457(c_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 356 }
    sink_5_13457(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 358 }
    return 0;
}

one   sink_5_13467(               A&);  // { dg-message "one sink_5_13467|no known conversion" }
three sink_5_13467(volatile       A&);  // { dg-message "note" }
four  sink_5_13467(const volatile A&);  // { dg-message "note" }
six   sink_5_13467(const          A&&);  // { dg-message "note" }
seven sink_5_13467(volatile       A&&);  // { dg-message "note" }

int test5_13467()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13467(source());     // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 375 }
    sink_5_13467(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 377 }
    return 0;
}

one   sink_5_13567(               A&);  // { dg-message "one sink_5_13567|no known conversion" }
three sink_5_13567(volatile       A&);  // { dg-message "note" }
five  sink_5_13567(               A&&);  // { dg-message "note" }
six   sink_5_13567(const          A&&);  // { dg-message "" }
seven sink_5_13567(volatile       A&&);  // { dg-message "note" }

int test5_13567()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13567(ca);           // { dg-error "lvalue" }
    sink_5_13567(cva);          // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 395 }
    sink_5_13567(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 397 }
    return 0;
}

one   sink_5_13568(               A&);
three sink_5_13568(volatile       A&);
five  sink_5_13568(               A&&);
six   sink_5_13568(const          A&&); // { dg-message "" }
eight sink_5_13568(const volatile A&&); // { dg-message "" }

int test5_13568()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13568(ca);           // { dg-error "lvalue" }
    sink_5_13568(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_13578(               A&);
three sink_5_13578(volatile       A&);
five  sink_5_13578(               A&&);
seven sink_5_13578(volatile       A&&);
eight sink_5_13578(const volatile A&&); // { dg-message "" }

int test5_13578()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13578(ca);           // { dg-error "lvalue" }
    sink_5_13578(cva);          // { dg-error "lvalue" }
    return 0;
}

one   sink_5_13678(               A&);
three sink_5_13678(volatile       A&);
six   sink_5_13678(const          A&&);  // { dg-message "" }
seven sink_5_13678(volatile       A&&);  // { dg-message "note" }
eight sink_5_13678(const volatile A&&);  // { dg-message "" }

int test5_13678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_13678(ca);           // { dg-error "lvalue" }
    sink_5_13678(cva);          // { dg-error "lvalue" }
    sink_5_13678(source());  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 450 }
    return 0;
}

one   sink_5_14567(               A&);  // { dg-message "one sink_5_14567|no known conversion" }
four  sink_5_14567(const volatile A&);  // { dg-message "note" }
five  sink_5_14567(               A&&);  // { dg-message "note" }
six   sink_5_14567(const          A&&);  // { dg-message "note" }
seven sink_5_14567(volatile       A&&);  // { dg-message "note" }

int test5_14567()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_14567(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 467 }
    return 0;
}

one   sink_5_14678(               A&);
four  sink_5_14678(const volatile A&);
six   sink_5_14678(const          A&&);  // { dg-message "note" }
seven sink_5_14678(volatile       A&&);  // { dg-message "note" }
eight sink_5_14678(const volatile A&&);  // { dg-message "note" }

int test5_14678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_14678(source());  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 484 }
    return 0;
}

one   sink_5_15678(               A&);
five  sink_5_15678(               A&&);
six   sink_5_15678(const          A&&); // { dg-message "" }
seven sink_5_15678(volatile       A&&); // { dg-message "" }
eight sink_5_15678(const volatile A&&); // { dg-message "" }

int test5_15678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_15678(ca);           // { dg-error "lvalue" }
    sink_5_15678(va);           // { dg-error "lvalue" }
    sink_5_15678(cva);          // { dg-error "lvalue" }
    return 0;
}

two   sink_5_23456(const          A&);  // { dg-message "two sink_5_23456|no known conversion" }
three sink_5_23456(volatile       A&);  // { dg-message "note" }
four  sink_5_23456(const volatile A&);  // { dg-message "note" }
five  sink_5_23456(               A&&);  // { dg-message "note" }
six   sink_5_23456(const          A&&);  // { dg-message "note" }

int test5_23456()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23456(a);            // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 519 }
    sink_5_23456(v_source());   // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 521 }
    sink_5_23456(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 523 }
    return 0;
}

two   sink_5_23457(const          A&);  // { dg-message "two sink_5_23457|no known conversion" }
three sink_5_23457(volatile       A&);  // { dg-message "note" }
four  sink_5_23457(const volatile A&);  // { dg-message "note" }
five  sink_5_23457(               A&&);  // { dg-message "note" }
seven sink_5_23457(volatile       A&&);  // { dg-message "note" }

int test5_23457()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23457(a);            // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 540 }
    sink_5_23457(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 542 }
    return 0;
}

two   sink_5_23458(const          A&);  // { dg-message "note" }
three sink_5_23458(volatile       A&);  // { dg-message "note" }
four  sink_5_23458(const volatile A&);  // { dg-message "note" }
five  sink_5_23458(               A&&);  // { dg-message "note" }
eight sink_5_23458(const volatile A&&);  // { dg-message "note" }

int test5_23458()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23458(a);  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 559 }
    return 0;
}

two   sink_5_23467(const          A&);  // { dg-message "two sink_5_23467|no known conversion" }
three sink_5_23467(volatile       A&);  // { dg-message "note" }
four  sink_5_23467(const volatile A&);  // { dg-message "note" }
six   sink_5_23467(const          A&&);  // { dg-message "note" }
seven sink_5_23467(volatile       A&&);  // { dg-message "note" }

int test5_23467()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23467(a);            // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 576 }
    sink_5_23467(source());     // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 578 }
    sink_5_23467(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 580 }
    return 0;
}

two   sink_5_23468(const          A&);  // { dg-message "note" }
three sink_5_23468(volatile       A&);  // { dg-message "note" }
four  sink_5_23468(const volatile A&);  // { dg-message "note" }
six   sink_5_23468(const          A&&);  // { dg-message "note" }
eight sink_5_23468(const volatile A&&);  // { dg-message "note" }

int test5_23468()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23468(a);  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 597 }
   return 0;
}

two   sink_5_23478(const          A&);  // { dg-message "note" }
three sink_5_23478(volatile       A&);  // { dg-message "note" }
four  sink_5_23478(const volatile A&);  // { dg-message "note" }
seven sink_5_23478(volatile       A&&);  // { dg-message "note" }
eight sink_5_23478(const volatile A&&);  // { dg-message "note" }

int test5_23478()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23478(a);  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 614 }
    return 0;
}

two   sink_5_23567(const          A&);  // { dg-message "two sink_5_23567|no known conversion" }
three sink_5_23567(volatile       A&);  // { dg-message "note" }
five  sink_5_23567(               A&&);  // { dg-message "note" }
six   sink_5_23567(const          A&&);  // { dg-message "note" }
seven sink_5_23567(volatile       A&&);  // { dg-message "note" }

int test5_23567()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23567(a);            // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 631 }
    sink_5_23567(cva);          // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 633 }
    sink_5_23567(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 635 }
    return 0;
}

two   sink_5_23568(const          A&);  // { dg-message "note" }
three sink_5_23568(volatile       A&);  // { dg-message "note" }
five  sink_5_23568(               A&&);  // { dg-message "note" }
six   sink_5_23568(const          A&&);  // { dg-message "note" }
eight sink_5_23568(const volatile A&&);  // { dg-message "" }

int test5_23568()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23568(cva); // { dg-error "lvalue" }
    sink_5_23568(a);  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 653 }
    return 0;
}

two   sink_5_23578(const          A&);  // { dg-message "note" }
three sink_5_23578(volatile       A&);  // { dg-message "note" }
five  sink_5_23578(               A&&);  // { dg-message "note" }
seven sink_5_23578(volatile       A&&);  // { dg-message "note" }
eight sink_5_23578(const volatile A&&);  // { dg-message "" }

int test5_23578()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23578(cva); // { dg-error "lvalue" }
    sink_5_23578(a);  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 671 }
    return 0;
}

two   sink_5_23678(const          A&);  // { dg-message "note" }
three sink_5_23678(volatile       A&);  // { dg-message "note" }
six   sink_5_23678(const          A&&);  // { dg-message "note" }
seven sink_5_23678(volatile       A&&);  // { dg-message "note" }
eight sink_5_23678(const volatile A&&);  // { dg-message "" }

int test5_23678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_23678(a);         // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 688 }
    sink_5_23678(cva);       // { dg-error "lvalue" }
    sink_5_23678(source());  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 691 }
    return 0;
}

two   sink_5_24567(const          A&);  // { dg-message "two sink_5_24567|no known conversion" }
four  sink_5_24567(const volatile A&);  // { dg-message "note" }
five  sink_5_24567(               A&&);  // { dg-message "note" }
six   sink_5_24567(const          A&&);  // { dg-message "note" }
seven sink_5_24567(volatile       A&&);  // { dg-message "note" }

int test5_24567()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_24567(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 708 }
    return 0;
}

two   sink_5_24678(const          A&);  // { dg-message "note" }
four  sink_5_24678(const volatile A&);
six   sink_5_24678(const          A&&);  // { dg-message "note" }
seven sink_5_24678(volatile       A&&);  // { dg-message "note" }
eight sink_5_24678(const volatile A&&);  // { dg-message "note" }

int test5_24678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_24678(source());  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 725 }
    return 0;
}

two   sink_5_25678(const          A&);
five  sink_5_25678(               A&&);
six   sink_5_25678(const          A&&);
seven sink_5_25678(volatile       A&&); // { dg-message "" }
eight sink_5_25678(const volatile A&&); // { dg-message "" }

int test5_25678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_25678(va);           // { dg-error "lvalue" }
    sink_5_25678(cva);          // { dg-error "lvalue" }
    return 0;
}

three sink_5_34567(volatile       A&);  // { dg-message "three sink_5_34567|no known conversion" }
four  sink_5_34567(const volatile A&);  // { dg-message "note" }
five  sink_5_34567(               A&&);  // { dg-message "note" }
six   sink_5_34567(const          A&&);  // { dg-message "note" }
seven sink_5_34567(volatile       A&&);  // { dg-message "note" }

int test5_34567()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_34567(cv_source());  // { dg-error "no match" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 759 }
    return 0;
}

three sink_5_34678(volatile       A&);
four  sink_5_34678(const volatile A&);
six   sink_5_34678(const          A&&);  // { dg-message "note" }
seven sink_5_34678(volatile       A&&);  // { dg-message "note" }
eight sink_5_34678(const volatile A&&);  // { dg-message "note" }

int test5_34678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_34678(source());  // { dg-error "ambiguous" }
    // { dg-message "candidate" "candidate note" { target *-*-* } 776 }
    return 0;
}

three sink_5_35678(volatile       A&);
five  sink_5_35678(               A&&);
six   sink_5_35678(const          A&&); // { dg-message "" }
seven sink_5_35678(volatile       A&&);
eight sink_5_35678(const volatile A&&); // { dg-message "" }

int test5_35678()
{
                   A a;
    const          A ca = a; // { dg-error "deleted" }
          volatile A va;
    const volatile A cva = a; // { dg-error "deleted" }
    sink_5_35678(ca);           // { dg-error "lvalue" }
    sink_5_35678(cva);          // { dg-error "lvalue" }
    return 0;
}

int main()
{
    return test5_12356() + test5_12357() + test5_12367() + test5_12467() +
           test5_12567() + test5_12678() + test5_13467() + test5_13567() +
           test5_13678() + test5_13678() + test5_23456() + test5_23457() +
           test5_23458() + test5_23467() + test5_23468() + test5_23478() +
           test5_23567() + test5_23568() + test5_23578() + test5_23678() +
           test5_24678() + test5_34678();
}