验证: 类属常量的初始化

// ClassTestA.h: interface for the CClassTestA class.////////////////////////////////////////////////////////////////////////#if !defined(AFX_CLASSTESTA_H__7355041B_59F2_4874_8936_E95F229138CC__INCLUDED_)#define AFX_CLASSTESTA_H__7355041B_59F2_4874_8936_E95F229138CC__INCLUDED_#include <windows.h>#if _MSC_VER > 1000#pragma once#endif // _MSC_VER > 1000const int G_INT_LEN_BUFFER_MAX = 4096;const int G_INT_PassType_Col_Max = 12;class CClassTestA{public:enum ePassType{ePassType_IdentityCard = 0, /** 身份证*/ePassType_StudentCard, /** 学生证 */ePassType_Passport, /** 护照 */ePassType_WorkPermit, /** 工作证 */ePassType_Unknown, /** 未知 */};public:CClassTestA();virtual ~CClassTestA();CClassTestA(CClassTestA& rhs);CClassTestA& operator= (CClassTestA& rhs);void Init();void UnInit();void Copy(CClassTestA& rhs);virtual void vDump();public:protected:public:/**< member geter, seter */public:/**< member */private:/*** 除了数组之外的常量可以不声明为static* 声明格式: xxType const m_xx;*/int const m_n1;PCHAR const m_pcMsg;/*** 通用的方法* 声明静态类属常量 static xxType const m_xx;* 类属数组只能用这种方法声明*/static float m_fFoodInventory; /** 食品的库存量, 单位[克] */static PCHAR const m_pcPassName[ePassType_Unknown]; /** 证件名称数组 */static PCHAR const m_pcPassType[][G_INT_PassType_Col_Max]; /**< 证件内容数组 */};#endif // !defined(AFX_CLASSTESTA_H__7355041B_59F2_4874_8936_E95F229138CC__INCLUDED_)

// ClassTestA.cpp: implementation of the CClassTestA class.////////////////////////////////////////////////////////////////////////#include "stdafx.h"#include "ClassTestA.h"//////////////////////////////////////////////////////////////////////// Construction/Destruction///////////////////////////////////////////////////////////////////////*** 类属静态常量初始化，必须在实现文件中进行赋值*/float CClassTestA::m_fFoodInventory = 2188.66f;PCHAR const CClassTestA::m_pcPassType[][G_INT_PassType_Col_Max] = {/** 身份证 */{"姓名", "性别", "民族", "出生", "住址", "公民身份号码", NULL, NULL, NULL, NULL, NULL, NULL}, /** 学生证 */{"科别", "学号", "姓名", "性别", "出生日期", "身分证字号", "家长或监护人", NULL, NULL, NULL, NULL, NULL}, /** 护照 */{"证件类型", "护照签发国", "护照号", "国籍", "出生日期", "性别", "证件有效期", "姓", "名", NULL, NULL, NULL}, /** 工作证 */{"单位名称", "姓名", "部门", "职务", "工号", NULL, NULL, NULL, NULL, NULL, NULL, NULL}, {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}, };PCHAR const CClassTestA::m_pcPassName[ePassType_Unknown] = {"身份证", "学生证", "护照", "工作证",};/*** 类属非静态常量初始化，必须使用变量初始化列表* must be initialized in constructor base/member initializer list*/CClassTestA::CClassTestA() :m_n1(-1), m_pcMsg("welcome"){Init();}CClassTestA::~CClassTestA(){UnInit();}CClassTestA::CClassTestA(CClassTestA& rhs) : m_n1(rhs.m_n1), m_pcMsg(rhs.m_pcMsg){if(this == &rhs)return;Copy(rhs);}CClassTestA& CClassTestA::operator= (CClassTestA& rhs){if(this == &rhs)return *this;Copy(rhs);return *this;}void CClassTestA::Init(){}void CClassTestA::UnInit(){}void CClassTestA::Copy(CClassTestA& rhs){}void CClassTestA::vDump(){int m = 0;int n = 0;int nArraySize = 0;int nArrayColSize = 0;int nArrayRowSize = 0;CHAR Buf[G_INT_LEN_BUFFER_MAX];/*** error C2166: l-value specifies const object*///m_n1 = 1;sprintf(Buf, "m_n1 = %d/n/n", m_n1);OutputDebugString(Buf);//*(m_pcMsg + 1) = '/0';//能编译过, 运行报错sprintf(Buf, "m_pcMsg = %s/n/n", m_pcMsg);OutputDebugString(Buf);sprintf(Buf, "m_fFoodInventory = %f/n/n", m_fFoodInventory);OutputDebugString(Buf);/*** printf m_cArray[][G_INT_PassType_Col]*/nArrayColSize = G_INT_PassType_Col_Max;nArrayRowSize = sizeof(m_pcPassType) / (sizeof(PCHAR) * nArrayColSize);sprintf(Buf, "m_pcPassType[%d][%d] = /n/n", nArrayRowSize, nArrayColSize);OutputDebugString(Buf);for(m = 0; m < nArrayRowSize; m++){if( m >= ePassType_IdentityCard && m < ePassType_Unknown){sprintf(Buf, "证件名称[%s]:/n", m_pcPassName[(ePassType)m]);OutputDebugString(Buf);}for(n = 0; n < nArrayColSize; n++){/*** error C2166: l-value specifies const object*///m_cArray[m][n] = '/0';if(NULL == m_pcPassType[m][n])break;sprintf(Buf, "%s, ", m_pcPassType[m][n]);OutputDebugString(Buf);}OutputDebugString("/n/n");}OutputDebugString("/n");}

// ClassConstVariableTest.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include "ClassTestA.h"int main(int argc, char* argv[]){printf("Hello World!/n");CClassTestA test;test.vDump();/** @note run resultm_n1 = -1m_pcMsg = welcomem_fFoodInventory = 2188.659912m_pcPassType[5][12] = 证件名称[身份证]:姓名, 性别, 民族, 出生, 住址, 公民身份号码, 证件名称[学生证]:科别, 学号, 姓名, 性别, 出生日期, 身分证字号, 家长或监护人, 证件名称[护照]:证件类型, 护照签发国, 护照号, 国籍, 出生日期, 性别, 证件有效期, 姓, 名, 证件名称[工作证]:单位名称, 姓名, 部门, 职务, 工号, */getchar();return 0;}