Thread: Pass values in functions and writing them to a txt file.

I made several comments on this code, hope this helps. This code is for fun, and have it doing a lot of what I want it to, just not all. I want random generated to write to a txt file. I tried to use an array but that failed. I wanted to use an array because i am only passing one value. Which makes sense since the random generated function is an int.

I made the fprintf as a comment but hopefully soon it will be able to send the values to the txt file. After that I will tackle the function.

Code:

 #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#define HIGH 49
#define LOW 1

int random_generated()
{
    static int randValue = 1;
    static int randValue2= 0;
    static int numberout;
    
    int j=0,i=0;
    
    srand(time(NULL));
    
    while (i < 100) {
        
    for (j=0; j<6; j++) {       // loops 6 times resulting in the while loop producing 6 numbers
                                // that were produced at the sametime
        do{
            randValue= (rand() %(HIGH-LOW+1))+LOW;          //generates random values
            randValue2= (rand() %(HIGH-LOW+1))+LOW;         //generates random values
        }
        
        while (randValue!=randValue2);
        
        randValue = numberout;
            return numberout; // will call this in datafile() and print its output to a .txt
    }                           //sends one value but I want 6, do I need an Array?
                                // tried to use one but it failed, might have used it wrong
        i++;
  }
}

void datafile()
{
    char file_name[81];
    char *p;
    int write_to_file;
    int i;
    FILE *fp;
    
    printf("Enter a file name:");
    fgets(file_name,sizeof(file_name),stdin);
    p=strchr(file_name, '\n');
    if ((p)) {
        *p='\0';
    }
    
    fp =fopen(file_name,"r+");
    if(fp==NULL)
    {
        printf("The file was not successfully opened\n");
        printf("Please check if the file exists\n");
        exit(1);
    }
    
    write_to_file = random_generated();
    
    printf("%d",write_to_file);
    
    //fprintf(fp, write_to_file); // this will hopefully soon write to a txt file with the output from
    //random_generated...
    
    fclose(fp);
}

int main(int argc, const char * argv[])
{
    
    datafile();
    
    random_generated();
    
    return 0;
}