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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  struct sa;

template <> struct sa {};

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();

// 7 at a time

one   sink_7_1234567(               A&);  // { dg-message "one sink_7_1234567|no known conversion" }

two   sink_7_1234567(const          A&);  // { dg-message "note" }

three sink_7_1234567(volatile       A&);  // { dg-message "note" }

four  sink_7_1234567(const volatile A&);  // { dg-message "note" }

five  sink_7_1234567(               A&&);  // { dg-message "note" }

six   sink_7_1234567(const          A&&);  // { dg-message "note" }

seven sink_7_1234567(volatile       A&&);  // { dg-message "note" }

int test7_1234567()

{

                   A a;

    const          A ca = a; // { dg-error "deleted" }

          volatile A va;

    const volatile A cva = a; // { dg-error "deleted" }

    sink_7_1234567(cv_source());  // { dg-error "no match" }

    // { dg-message "candidate" "candidate note" { target *-*-* } 47 }

    return 0;

}

one   sink_7_1235678(               A&);

two   sink_7_1235678(const          A&);

three sink_7_1235678(volatile       A&);

five  sink_7_1235678(               A&&);

six   sink_7_1235678(const          A&&);

seven sink_7_1235678(volatile       A&&);

eight sink_7_1235678(const volatile A&&); // { dg-message "" }

int test7_1235678()

{

                   A a;

    const          A ca = a; // { dg-error "deleted" }

          volatile A va;

    const volatile A cva = a; // { dg-error "deleted" }

    sink_7_1235678(cva);        // { dg-error "lvalue" }

    return 0;

}

two   sink_7_2345678(const          A&);  // { dg-message "note" }

three sink_7_2345678(volatile       A&);  // { dg-message "note" }

four  sink_7_2345678(const volatile A&);  // { dg-message "note" }

five  sink_7_2345678(               A&&);  // { dg-message "note" }

six   sink_7_2345678(const          A&&);  // { dg-message "note" }

seven sink_7_2345678(volatile       A&&);  // { dg-message "note" }

eight sink_7_2345678(const volatile A&&);  // { dg-message "note" }

int test7_2345678()

{

                   A a;

    const          A ca = a; // { dg-error "deleted" }

          volatile A va;

    const volatile A cva = a; // { dg-error "deleted" }

    sink_7_2345678(a);  // { dg-error "ambiguous" }

    // { dg-message "candidate" "candidate note" { target *-*-* } 84 }

    return 0;

}

one   sink_7_1234678(               A&);

two   sink_7_1234678(const          A&);  // { dg-message "note" }

three sink_7_1234678(volatile       A&);

four  sink_7_1234678(const volatile A&);

six   sink_7_1234678(const          A&&);  // { dg-message "note" }

seven sink_7_1234678(volatile       A&&);  // { dg-message "note" }

eight sink_7_1234678(const volatile A&&);  // { dg-message "note" }

int test7_1234678()

{

                   A a;

    const          A ca = a; // { dg-error "deleted" }

          volatile A va;

    const volatile A cva = a; // { dg-error "deleted" }

    sink_7_1234678(source());  // { dg-error "ambiguous" }

    // { dg-message "candidate" "candidate note" { target *-*-* } 103 }

    return 0;

}

int main()

{

    return test7_2345678() + test7_1234678();

}