Customizable size and number of random number functions

Recently in doing a test software, need each topic different and the number of questions can be customized, in C + + did not find the applicable function, on the easy to do a more general C + + random function expansion, please programming reference.

void randEx(int MAX,int NUM)
{
　　int k=0;
　　int j=0;
　　time_t t;
　　//设置rand函数所用的启始种子值，以期每次产生的随机数序列均不相同。
　　srand((unsigned) time(&t));
　　for (k=1;k<=NUM;k++)//定制随机数数量。
　　{
　　　　RAND[k]=rand()%MAX;//定制随机数在0至最大值之间。
　　　　do　
　　　　{
　　　　for (j=1;j<k;j++) if (RAND[j]==RAND[k]) //一次随机数序列中有相同随机数则再
　　　　　　　　　　　　　　//产生一个，直至一次随机数序列中随机数全不相同。
　　　　{
　　　　　　RAND[k]=rand()%MAX;
　　　　　　break;
　　　　}
　　　　}while(j<k);
　　}
}

The specific usage: first in your project corresponding class header file defines an integral type array rand[], adds this function to the header file, passes the maximum value and the quantity in the corresponding class realization, outputs the random number sequence. See the example project, the main code in the example project is as follows:

Testranddlg.h:header file
//
Class Ctestranddlg:public CDialog
{
Public
Ctestranddlg (cwnd* pparent = NULL); Standard constructor
int rand[20];
void Randex (int max,int NUM);
cwnd* P_staticwnd;
.....
}
TestRandDlg.cpp:implementation file
//
.....
void Ctestranddlg::ontestrand ()
{
UpdateData (TRUE);
Randex (M_nrandmax,m_nrandnum);

CString str;
if (m_nrandnum>=1) {
Str. Format ("%d", rand[1]);
P_staticwnd = GetDlgItem (IDC_STATIC1);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=2) {
Str. Format ("%d", rand[2]);
P_staticwnd = GetDlgItem (IDC_STATIC2);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=3) {
Str. Format ("%d", rand[3]);
P_staticwnd = GetDlgItem (IDC_STATIC3);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=4) {
Str. Format ("%d", rand[4]);
P_staticwnd = GetDlgItem (IDC_STATIC4);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=5) {
Str. Format ("%d", rand[5]);
P_staticwnd = GetDlgItem (IDC_STATIC5);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=6) {
Str. Format ("%d", rand[6]);
P_staticwnd = GetDlgItem (IDC_STATIC6);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=7) {
Str. Format ("%d", rand[7]);
P_staticwnd = GetDlgItem (IDC_STATIC7);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=8) {
Str. Format ("%d", rand[8]);
P_staticwnd = GetDlgItem (IDC_STATIC8);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=9) {
Str. Format ("%d", rand[9]);
P_staticwnd = GetDlgItem (IDC_STATIC9);
P_staticwnd->setwindowtext (str);
if (m_nrandnum>=10) {
Str. Format ("%d", rand[10]);
P_staticwnd = GetDlgItem (IDC_STATIC10);
P_staticwnd->setwindowtext (str);
UpdateData (FALSE);
}

This project is debugged and passed in Vc++6.0+windowsxp.

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