Untitled

Recursion with pointer and memory leak

#include <iostream>

#include <string>

using namespace std;

char *convert_number(int, int);

 

const char *tens[]={"","ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"};

const char *words[]={"zero","one", "two", "three", "four", "five", "six", "seven", "eight", "nine","ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen", "eighteen","ninteen"};

const char *place[]={"","thouands","million","billion","trillion"};

 

 

int main(int argc, char **argv)

 {

int number,conv_num,places;

places=1;

char *string= new char[1000];

char *temp_string = new char[100];

cout<<"Enter a number:";

cin>>number;

string = convert_number(number,0);

cout<<"The word is :"<<string<<endl;

}

 

char *convert_number(int number,int places)

{

int divisor;

char *word;

int conv_num;

char *temp_string = new char[100];

word = new char[100];

divisor=10;

 

if (number>=1000)

{  

    conv_num = number % 1000;

    number = (number-conv_num)/1000;

    places++;

    temp_string = convert_number(number,places);    

    word = strcat(word, temp_string);

    word = strcat(word, place[places]);

    word =strcat(word," ");

}

else

{

    conv_num = number;

}

if (conv_num>=100)

{

    word =strcat(word,words[conv_num/100]);

    word =strcat(word," hundred ");

    conv_num=conv_num%100;

}

 

if(conv_num >=20)

{

 word=strcat(word,tens[conv_num/10]);

 word =strcat(word," ");

 if(conv_num%divisor>=1)

 {

    word=strcat(word,words[conv_num%divisor]);  

    word =strcat(word," ");

  }

}

 

if(conv_num<20)

{

    word=strcat(word,words[conv_num]);

    word =strcat(word," ");

}      

delete[] temp_string;      

return word;

}

       

char *temp_string = new char[100];  // first assignment

 

[...]

 

if (number>=1000)

{  

[...]

    temp_string = convert_number(number,places);