DaniWeb IT Discussion Community - C++ File Generator

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; 

               }

           }

    }

    }

}

#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);
}
}
}
}
}

#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());
}
}
}
}
}