rv8p.c

来自「用于进行gcc测试」· C语言 代码 · 共 63 行

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

// Test overlaod resolution among referece 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();

// 8 at a time

one   sink_8_12345678(               A&);
two   sink_8_12345678(const          A&);
three sink_8_12345678(volatile       A&);
four  sink_8_12345678(const volatile A&);
five  sink_8_12345678(               A&&);
six   sink_8_12345678(const          A&&);
seven sink_8_12345678(volatile       A&&);
eight sink_8_12345678(const volatile A&&);

int test8_12345678()
{
                   A a;
    const          A ca = a;
          volatile A va;
    const volatile A cva = a;
    sa<sizeof(sink_8_12345678(a))           == 1> t1;
    sa<sizeof(sink_8_12345678(ca))          == 2> t2;
    sa<sizeof(sink_8_12345678(va))          == 3> t3;
    sa<sizeof(sink_8_12345678(cva))         == 4> t4;
    sa<sizeof(sink_8_12345678(source()))    == 5> t5;
    sa<sizeof(sink_8_12345678(c_source()))  == 6> t6;
    sa<sizeof(sink_8_12345678(v_source()))  == 7> t7;
    sa<sizeof(sink_8_12345678(cv_source())) == 8> t8;
    return 0;
}

int main()
{
    return test8_12345678();
}