C++调试函数的编写

ACM线下赛中，很多时候并不提供很强大的调试软件，这样，如果要想调试查看map或list等信息，需要自行编写输出中间结果。

这里提供一个通用框架，并附上示例，可以作为模板使用，提交代码时注释掉#define YLOFI和#define YDELO即可。

#define YLOFI
#define YDELO

#include<iostream>
#include<iomanip>
#include<cstdio>
#include<string>
#include<sstream>
#include<map>
#include<list>
#include<algorithm>
using namespace std;
#define YCOL1 10
struct yc2d{
    int a;
    int b;
};

#ifdef YDELO
//#include "YLog.h"
#include "assert.h"
int ydelon = 0;
int ydelom = 0;
//自定义类
ostream &operator<<(ostream &os,const yc2d &myclass){
    return os << myclass.a << " " << myclass.b;
}
//二维数组
template<typename T>
void yPrintArr(const T x[][YCOL1]){
    int i = 0;
    while(1){
        cout << i;
        for(int j = 0;j<ydelom;j++){
            cout << " (" << j << "," << x[i][j] << ")";
        }
        i++;
        if(i >= ydelon){
            break;
        }
        else{
            cout << endl;
        }
    }
    return;
}
template<typename T>
bool yPrint(const string &info,const T x[][YCOL1],int n = 0,int m = 0,bool clr = true){
    if(clr){
        system("cls");
    }
    cout << endl << "\**********************" << endl << info << endl;
    ydelon = n;
    ydelom = m;
    if(ydelon > 0 && ydelom > 0){
        yPrintArr(x);
    }
    else{
        return false;
    }
    cout << endl << "**********************\" << endl;
    return true;
}
//数组
template<typename T,int size>
void yPrintArr(const T (&x)[size]){
    int i = 0;
    while(1){
        cout << i << " " << x[i];
        i++;
        if(i >= ydelon){
            break;
        }
        else{
            cout << endl;
        }
    }
    return;
}
template<typename T,int size>
bool yPrint(const string &info,const T (&x)[size],int n = 0,bool clr = true){
    if(clr){
        system("cls");
    }
    cout << endl << "\**********************" << endl << info << endl;
    ydelon = n;
    if(ydelon > 0){
        yPrintArr(x);
    }
    else{
        return false;
    }
    cout << endl << "**********************\" << endl;
    return true;
}
//非数组
template<typename T>
bool yPrint(const string &info,const T &x,int n = 0,bool clr = true){
    if(clr){
        system("cls");
    }
    cout << endl << "\**********************" << endl << info << endl;
    ydelon = n;
    if(ydelon >= 0){
        cout << x;
    }
    else{
        return false;
    }
    cout << endl << "**********************\" << endl;
    return true;
}
//list & map
template<typename T,typename S>
ostream &operator<<(ostream &os,const pair<T,S> &it){
    return     os << it.first << " " << it.second;
}
template<typename T,typename S>
ostream &operator<<(ostream &os,const map<T,S> &st){
    int n = ydelon==0?st.size():ydelon,i = 0;
    os <<  " size=" << st.size() << " show=" << n << endl;
    for(typename map<T,S>::const_iterator it = st.begin();it!=st.end();it++){
        os << i << " " << *it;
        i++;
        if(i >= n){
            break;
        }
        else{    
            os << endl;
        }
    }
    return os;
}
template<typename T>
ostream &operator<<(ostream &os,const list<T> &st){
    int n = ydelon==0?st.size():ydelon,i = 0;
    os <<  " size=" << st.size() << " show=" << n << endl;
    for(typename list<T>::const_iterator it = st.begin();it!=st.end();it++){
        os << i << " " << *it;
        i++;
        if(i >= n){
            break;
        }
        else{
            os << endl;
        }
    }
    return os;
}
#endif

int main(){
    #ifdef YLOFI
    freopen("yin.txt","r",stdin);
    //freopen("yout.txt","w",stdout);
    #endif
    #ifdef YDELO
    assert(1);
    #endif
    map<int,int> ma;
    ma[1] = 9;
    ma[2] = 8;
    ma[-1] = 7;
    list<int> li;
    li.push_back(33);
    li.push_back(3);
    int a = 3;
    double f[10] = {1.1,2.2,3.3,4.4};
    yc2d myclass;
    myclass.a = 3;
    myclass.b = 2;
    int arr2[4][YCOL1] = {{0,1,2},{2,1,0}};
    cout << "here could be clear." << endl;
#ifdef YDELO
    assert(yPrint("ma1",ma,2));
    assert(yPrint("li",li,0,false));
    assert(yPrint("a",a,0,false));
    assert(yPrint("f",f,4,false));
    assert(yPrint("myclass",myclass,0,false));
    assert(yPrint("arr2",arr2,2,3,false));
#endif
    return 0;
}