He then challenged us to modify his code to print the numbers in reverse from the end of the file, and that a similar question may end up on a test.

Well, if that’s the case I probably won’t get a 0 on the next test because I think I have a solution:

#include <iostream>
#include <fstream>
using namespace std;


int main(){
  double d =0;
  fstream fin("nums.bin",ios::in| ios::binary);
  int i;
  fin.seekg(sizeof(double)*980);
  for(i=0;i<1000 && !fin.fail() ;i++){
    fin.read((char*)&d,sizeof(double));
    if(!fin.fail()){
      cout<<i<<": "<<d<<endl;
    }
  }
  fin.clear();
  cout<<"---------------"<<endl;
  for(i=0;i<1000 && !fin.fail() ;i++){
    fin.seekg(sizeof(double)*-(1+i), ios::end);
    fin.read((char*)&d,sizeof(double));
    if(!fin.fail()){
      cout<<i<<": "<<d<<endl;
    }
  }
  fin.clear();
  return 0;
}

works, but there’s probably a better way of doing it XD

I want the table to be directly under the first header on the page, followed by subsequent headers but as I keep adding content, it always shows up above the table.

Probably a syntax error somewhere but I can’t seem to spot it.

Weird!

The topics covered were pretty straight forward, making sure everyone had the basics of svn down, how to approach Assignment Two and some basic rules and practices like having separate main()s for each group member.

After some research, I found a fix. I added void to the parameter definitions of the function prototypes and function headers which had no parameters.

so

void io_flush();

became

void io_flush(void);

I’ve made some progress, but it’s still not perfect…

Here’s my updated code:

 case RIGHT_KEY:  /* bug fixed! (sort of) goes one space too far
 after HOME_KEY + DELETE*/
		if(str[i + (*curpos) + (*offset +1)]){
		  if(*curpos != fieldlen - 1){
            (*curpos)++;
          }
          else{
            (*offset)++;
          }
		}
        break;

as the comment says, the bug happens when you hit BACKSPACE_KEY with the cursor at the HOME_KEY position, after doing that, if you spam the RIGHT_KEY it will always go one space too far….

hmmm…..

EDIT:

made a small adjustment, removed i from str’s index and it seems to work fine now

updated code:

 case RIGHT_KEY:  /* bug fixed! (i hope) */
		if(str[(*curpos) + (*offset +1)]){
		  if(*curpos != fieldlen - 1){
            (*curpos)++;
          }
          else{
            (*offset)++;
          }
		}
        break;

/*void GetInt(char *strint, int val); – this function gets an integer

value and converts it to a string (“strint”) */

void GetInt(char *strint, int val){

int len = 0;

while(val){

strint[len++] = (val % 10) + ’0′;

val /= 10;

}

strint[len] = ”;

}

This is my first blog and first post for the OOP344 course.  My instructor Fardad says generic generated posts won’t cut it, so here’s my attempt at a real blog.

Well, that seems like a good start, more posts to come! Stay tuned!