I need help with a random number generator program.

[Andrew Gaupp]

I am trying to write a simple program that picks a number between 1 and 100, and then lets the user guess what the number is. The program should tell the user if their guess is to high, to low, or correct.

The problem I am having a problem with the program I wrote. Every time I input a number it tells me I am correct even if that number is larger than 100.

I don't what the problem is. Could someone please help.

#include <iostream>
#include <cstdlib>
#include <ctime>


using namespace std;


int rand_range(int low, int high)
{
    return rand() % (high - low + 1 )+low;
}
int main()
{   int input;
    srand(time(NULL));
    rand_range(1,100);


    cout << "pick a number between 1 and 100 \n";
    cin >> input;


    if(input=rand_range(1,100))
    {
        cout << "correct!\n";
    }
    else if( input != rand_range(1,100))
    {
        cout<< "wrong!\n";
    }

randexample.cpp

[tabstop]

The difference between "=" and "==" rears its ugly head yet again.

[King Mir]

You're also calling rand_range too many times. You should only call it once.

[jocdrew21]

<random>

std::default_random_engine generator;
std::uniform_int_distribution<int> distribution(1,6);
int dice_roll = distribution(generator);  // generates number in the range 1..6

If you would like to know others ways to produce random numbers take a look at: <random> - C++ Reference

There is a whole library on random number generation, check it out.