Hello Everyone,
I am working on a program that will write random numbers to a file. I am getting the following error on line 31 of the filer.cpp file.
"error: no match for 'operator<<' in 'outstream << srand((( srand(((unsigned int)time(Ou)))'"
I believe the code used to generate the random number is correct. Am I doing something wrong with the output?
//main
#include "utility.h"
#include "filer.h"
using namespace std;
int main()
{
int n, range;
bool random;
string fileName;
cout << "Hello User!" << endl;
cout << "How many numbers do you want in the file?" << endl;
cin >> n;
cout << "How many digits per number?" << endl;
cin >> range;
cout << "Please enter 1 for random or 0 for pseudorandom." << endl; //bool, 1 is TRUE, 0 False
cin >> random;
cout << "Please enter the desired file name." << endl;
cin >> fileName;
cout << endl; //System Pause
//=========== Test code ======================
cout << n << endl;
cout << range << endl;
cout << random << endl;
cout << fileName << endl;
//=========== Test code ======================
filer filerObject;
filerObject.makefile(n, range, random, fileName);
return 0;
}//filer.cpp
#include "utility.h"
#include "filer.h"
filer::filer()
{
//ctor
}
filer::~filer()
{
//dtor
}
//precondition: n, range, truly_random, and file_name have
//been set; truly_random is type bool, and determines whether
//the numbers are truly random, or pseudorandom
//postcondition: n random integers in the range 0-range,
//inclusive, have been written to a file named file_name,
//one per line;
void filer::makefile(int n, int range, bool truly_random, string file_name)
{
ofstream outstream;
outstream.open(file_name.c_str());
if (!truly_random){
outstream << rand() << endl;
}
else if (truly_random){
outstream << srand(int(time(NULL))) << endl; //ERROR HERE
}
}//filer.h
#ifndef FILER_H
#define FILER_H
//header file FILER.H for class filer
//a class object can create a file of a specified
//number of random integers in a specified range
class filer
{
public:
filer(); //NOT ORIGINAL
void makefile(int n, int range, bool truly_random, string file_name);
//precondition: n, range, truly_random, and file_name have
//been set; truly_random is type bool, and determines whether
//the numbers are truly random, or pseudorandom
//postcondition: n random integers in the range 0-range,
//inclusive, have been written to a file named file_name,
//one per line;
virtual ~filer(); //NOT ORIGINAL
private:
int next_number(int range);
//precondition: range has been set to a nonnegative value
//postcondition: returns a random integer in the range
//0-range, inclusive
};
#endif //FILER_H