Shapes Generator

// This code is giving an infinite loop via the arrow code.

// Secondly, is there a nested for loop algorithm that will print out an oval shape?

********************Actual Code***********************************

// diamond.cpp

#include <iostream.h>

using namespace std;

const int SIZE = 9;

void draw_line(char, int);
void draw_box(int, int, int, char);
void draw_tip(int, char);

int main(int argc, char *argv[]) {

  int a, b, c, i, j, x, y;

  char symbol;
  int tail_width, tail_length;
  int indent;
  int tip_height, tip_width;
  draw_tip(tip_height, symbol);
  tip_width = 2 *tip_height - 1;
  indent = (tip_width - tail_width) / 2;
  draw_box(indent, tail_length, tail_width, symbol);
 
 
  cout << '\n' << "Shapes Generator " << endl << endl;

  // right triangle nested for loops

  for(i = 1; i <= SIZE; i++) {
    for(j = 0; j < i; j++) cout << "*";
      cout << endl;
                                  
  }

  cout << '\n';

  // box nested for loops

  for(x = 1; x <= SIZE; x++) {
    for(y = 0; y < i; y++)
      cout << "*";
      cout << endl;

  }

  cout << '\n';

  // diamond nested for loops

  for(a = 1; a < 6; a++) {
    for(b = a; b < 5; b++) {
      cout << ' ';
    }

    for(c = 1; c < (2 *a); c++) {
      cout << "*";
    }
    cout << endl;

  }

  // reversal

  for(a = 4; a > 0; a--) {
    for(b = a; b < 5; b++) {
      cout << ' ';
    }

    for(c = 1; c < (2 *a); c++) {
      cout << "*";
    }
    cout << endl;

  }

  cout << '\n';

  // oval

  cout << "   ***    " << '\n'
       << "  *****   " << '\n'
       << " *******  " << '\n'
       << "********* " << '\n'
       << "********* " << '\n'
       << " *******  " << '\n'
       << "  *****   " << '\n'
       << "   ***    " << '\n' << endl;

  cout << "Enter the tip height: " << flush;
  cin >> tip_height;

  cout << "Enter the tail width: " << flush;
  cin >> tail_width;

  cout << "Enter the tail length: " << flush;
  cin >> tail_length;

  cout << "Enter the character to use: " << flush;
  cin >> symbol;

  cout << endl << '\t' << "Enrique De Los Santos." << endl << endl;
   
    return 0;

}

void draw_line(char character, int how_many) {

  for(int d = 1; d <= how_many; d++)
    cout << character << endl;

    return;

}

void draw_box(int indent, int box_length, int box_width, char symbol) {

  for(int e = 1; e <= box_length; e++) {
    draw_line(' ', indent);
    draw_line(symbol, box_width);
  cout << endl;

  }
  return;

}

void draw_tip(int tip_height, char symbol) {

  for(int f = 1; f <= tip_height; f++) {
    draw_line(' ', tip_height - f);
    draw_line(symbol, 2 *f - 1);
    cout << '\n';
  }
  return;

}