各位大牛，请教一下问题

[CANDICE000]

#include <iostream>
#include <stdlib.h> // Need random(), srandom()
#include <time.h> // Need time()
#include <vector> // Need vector
#include <algorithm> // Need for_each()
using namespace std;

#define VSIZE 24 // Size of vector
vector<long> v(VSIZE); // Vector object

// Function prototypes
void initialize(long &ri);
void show(const long &ri);
bool isMinus(const long &ri); // Predicate function

int main()
{
srandom( time(NULL) ); // Seed random generator

for_each(v.begin(), v.end(), initialize);//调用普通函数
cout << "Vector of signed long integers" << endl;
for_each(v.begin(), v.end(), show);
cout << endl;

// Use predicate function to count negative values
//
int count = 0;
vector<long>::iterator p;
p = find_if(v.begin(), v.end(), isMinus);//调用断言函数
while (p != v.end()) {
count++;
p = find_if(p + 1, v.end(), isMinus);
}
cout << "Number of values: " << VSIZE << endl;
cout << "Negative values : " << count << endl;

return 0;
}

// Set ri to a signed integer value
void initialize(long &ri)
{
ri = ( random() - (RAND_MAX / 2) );
// ri = random();
}

// Display value of ri
void show(const long &ri)
{
cout << ri << " ";
}

// Returns true if ri is less than 0
bool isMinus(const long &ri)
{
return (ri < 0);
}

在VC6下怎么运行不了呢

[zmcomputer]

srandom这个没见过，以前随机是用srand的，你改下，试下

[jadyzdr]

C++中没有random和srandom把这两个东西改为rand和srand就可以用了

[weixiaoshashou]

Visual C++ 里面有random

[pengzhixi]

用srand和rand试试吧

[mstlq]

注意两个词的拼写
srand和rand

#include <iostream>
#include <stdlib.h> // Need random(), srandom()
#include <time.h> // Need time()
#include <vector> // Need vector
#include <algorithm> // Need for_each()
using namespace std;
 
#define VSIZE 24 // Size of vector
vector<long> v(VSIZE); // Vector object
 
// Function prototypes
void initialize(long &ri);
void show(const long &ri);
bool isMinus(const long &ri); // Predicate function
 
int main()
{
  srand( time(NULL) ); // Seed random generator
  
  for_each(v.begin(), v.end(), initialize);//调用普通函数
  cout << "Vector of signed long integers" << endl;
  for_each(v.begin(), v.end(), show);
  cout << endl;
  
  // Use predicate function to count negative values
  //
  int count = 0;
  vector<long>::iterator p;
  p = find_if(v.begin(), v.end(), isMinus);//调用断言函数
  while (p != v.end()) {
  count++;
  p = find_if(p + 1, v.end(), isMinus);
  }
  cout << "Number of values: " << VSIZE << endl;
  cout << "Negative values : " << count << endl;
  
  return 0;
}
 
// Set ri to a signed integer value
void initialize(long &ri)
{
  ri = ( rand() - (RAND_MAX / 2) );
  // ri = random();
}
 
// Display value of ri
void show(const long &ri)
{
  cout << ri << " ";
}
 
// Returns true if ri is less than 0
bool isMinus(const long &ri)
{
  return (ri < 0);
}

[wade_2003]

又来晚了一步，srand（）和rand（）函数

[ZZIA_TIAN]

等待高手前来，俺看不明白