lib.h

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#pragma once
#include <stdio.h>
 
struct Reg {
    int r_;
    Reg(int r) : r_(r) {}
};
 
inline const Reg& getReg0() { static const Reg r(0); return r; }
inline const Reg& getReg1() { static const Reg r(1); return r; }
inline const Reg& getReg2() { static const Reg r(2); return r; }
 
static const Reg& r0 = getReg0();
static const Reg& r1 = getReg1();
static const Reg& r2 = getReg2();
 
inline void putReg()
{
    puts("putReg");
    printf("r0=%p, %d\n", &r0, r0.r_);
    printf("r0=%p, %d\n", &r0, r1.r_);
    printf("r0=%p, %d\n", &r0, r2.r_);
}
 
struct A {
    int a;
    A()
        : a(5)
    {
        puts("A cstr");
    }
    ~A()
    {
        puts("A dstr");
    }
    void put() const
    {
        printf("a=%d\n", a);
    }
};
 
template<int dummy = 0>
struct XT {
    static A a;
};
 
template<int dummy>
A XT<dummy>::a;
 
typedef XT<0> X;
 
void init();
 
struct Init {
    Init()
    {
        puts("Init");
        init();
        putReg();
    }
};
static Init s_init;