C++ File Generator

[Eyies]

Hey all, I'm new to this forum, first post.. so please excuse me (also excuse the perhaps not so eloquent style, it is still in preliminary!) =). I'm writing a short piece of code in compliance with a webserver I've been programming with a group. This code is to auto generate an assorted sizes of files (which will later be used to test latency timings and average GET request timings) starting from size Class 0 which are files less
than 1KB, class 1 files are less than 10K, class 2 files are less than 100K and class 3 files
are less than 1MB. It should auto-populates the specified directory with the four
classes of files. There will be 9 files per class. Files in class 0 are in increments of
0.1KB (starting at 102 bytes) while class 1, class 2 and class 3 are in increments of 1KB. Syntax to use the code is HTMLGenerator -d <directory>. Output files should have the form of class<classsize#>_<increment>.

My greatest problem is that our school's compiler is old and does not contain <sstream> hence making my INT to String conversion difficult. Currently the code seg faults, likely due to improper usage of the *buffer. Any questions regarding the code I will promptly reply as I'm still working away. Any suggestions on how I can get this done? Thank you all greatly for your time and help ! =)

#include <string>
#include <cstring>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <string>


using namespace std;

int main(int argcount, char* args[]){
    int number_of_arguments = argcount-1;
    
    for (int i=1;i<=number_of_arguments;i++){
    string argTemp = args[i];

       if (argTemp == "-d"){
           //begin loop
           string classSize,increm;
           for (int i=0;i<1;i++){
               if (i==0){classSize="102";increm="100";}
               if (i==1){classSize="1024";increm="1000";}
               if (i==2){classSize="10240";increm="10000";}
               if (i==3){classSize="102400";increm="100000";}


         int incremTEMP=atoi(increm.c_str());
         int classSizeTEMP=atoi(classSize.c_str());
         for (int j=0;j<9;j++){
                   string dest=args[2];
                   dest=dest+"/class"+classSize+"_"+increm;              
                   ofstream myfile (dest.c_str());
                   if (!myfile.is_open()) { //check validity of file
                      cerr << "Error: cannot open the file " << dest << endl;
                      exit (-1);
                   }else{
                      for (int k=0;k<(classSizeTEMP+incremTEMP)/2;k++){
                          myfile<<"LO";
                      }
                   }
              myfile.close();
              incremTEMP=incremTEMP+j*incremTEMP; 

//problems here (i'm really not sure i'm using
//sprintf correctly at all, let alone storing the
// data in buffer back into increm
              char *buffer[100]; 
              sprintf(buffer[100], "%d",incremTEMP);
              for (int i=1;i<=100;i++) increm+=buffer[i];
              delete *buffer; 
               }
           }
    }
    }
}

[Eyies]

Hi all, I have managed to find a IntToString algorithm and I THINK its working, however the files are not generating. Sigh. If you could look over my code that would be great!

#include <string>
#include <cstring>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <string>


using namespace std;

string IntToString(unsigned int x)
{
    static const int Radix = 10;
    static const int MaxDigits = 20;

    if (0 == x) return "0";

    char Tmp[MaxDigits + 1];
    char* Cur = Tmp + MaxDigits;
    *Cur = '\0';
    while (x && (Cur > Tmp))
    {
        --Cur;
        *Cur = (x%Radix) + '0';
        x /= Radix;
    }
return Cur;
}

int main(int argcount, char* args[]){
    int number_of_arguments = argcount-1;

    for (int i=1;i<=number_of_arguments;i++){
    string argTemp = args[i];

       if (argTemp == "-d"){
         cout<<"sup"<<endl;
           //begin loop
           string classSize,increm;
           for (int i=0;i<3;i++){
            cout<<i<<endl;
               if (i==0){
            classSize="102";increm="100";}
               if (i==1){classSize="1024";increm="1000";}
               if (i==2){classSize="10240";increm="10000";}
               if (i==3){classSize="102400";increm="100000";}


         int incremTEMP=atoi(increm.c_str());
           int classSizeTEMP=atoi(classSize.c_str());
         for (int j=0;j<9;j++){
                   string dest=args[2];
                   dest=dest+"/class"+classSize+"_"+increm;              
                   ofstream myfile (dest.c_str());
            cout<<dest<<endl;
            cout<<increm<<endl;
                   if (!myfile.is_open()) { //check validity of file
                      cerr << "Error: cannot open the file " << dest << endl;
                      exit (-1);
                   }else{
                      for (int k=0;k<(classSizeTEMP+incremTEMP)/2;k++){
                          myfile<<"LO";
                      }
                   }
              myfile.close();
                    incremTEMP=incremTEMP+(j+1)*incremTEMP;
              increm=IntToString(incremTEMP);
               }
           }
    }
    }
}

[Eyies]

lol never mind. I figured it all out, now to implement different flags, sorry for the spam guys. =)

#include <string>
#include <cstring>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <string>


using namespace std;

string IntToString(unsigned int x)
{
    static const int Radix = 10;
    static const int MaxDigits = 20;

    if (0 == x) return "0";

    char Tmp[MaxDigits + 1];
    char* Cur = Tmp + MaxDigits;
    *Cur = '\0';
    while (x && (Cur > Tmp))
    {
        --Cur;
        *Cur = (x%Radix) + '0';
        x /= Radix;
    }
return Cur;
}

int main(int argcount, char* args[]){
    int number_of_arguments = argcount-1;
    
    for (int i=1;i<=number_of_arguments;i++){
    string argTemp = args[i];

       if (argTemp == "-d"){
         cout<<"sup"<<endl;
           //begin loop
           string classSize,increm;
           for (int i=0;i<3;i++){
            cout<<i<<endl;
               if (i==0){classSize="102";increm="100";}
               if (i==1){classSize="1024";increm="1000";}
               if (i==2){classSize="10240";increm="10000";}
               if (i==3){classSize="102400";increm="100000";}


         int incremTEMP=atoi(increm.c_str());
           int classSizeTEMP=atoi(classSize.c_str());
         for (int j=0;j<9;j++){
                   string dest=args[2];
                   dest=dest+"/class"+classSize+"_"+IntToString(incremTEMP);              
                   ofstream myfile (dest.c_str());
                   if (!myfile.is_open()) { //check validity of file
                      cerr << "Error: cannot open the file " << dest << endl;
                      exit (-1);
                   }else{
                      for (int k=0;k<(classSizeTEMP+incremTEMP)/2;k++){
                          myfile<<"LO";
                      }
                   }
              myfile.close();
                    incremTEMP=incremTEMP+atoi(increm.c_str());
               }
           }
    }
    }
}