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Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
<http://www.noicys.cjb.net/> 
* Alternative URL: http://run.to/noicys

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Kirktoun
.....The Clark Family
Sent: Monday, April 01, 2002 1:02 AM
To: dev...@li...
Subject: [Dev-C++] re five floating numbers


hello
 I just noticed my email seem to have added a few = signs at the end of
lines and the characters 3D after the =sign in the for loops of the code
i posted , i don't know why it does this, does anyone know?  

hello
 I just noticed my email seem to have added a few =3D signs at the end =
of lines and the characters 3D after the =3Dsign in the for loops of the =
code i posted , i don't know why it does this, does anyone know? =20

Hi there,

Here is a program to input 5 floats and output them to the screen, using =
loops. oh i am using the bloodshed compiler.

#include <iostream>
#include <iomanip>
#include <conio.h>
using std::cout;
using std::cin;
using std::endl;
#define MAX 5


int main()
{
 float number[MAX];
 int x;

cout << " A program to enter and display 5 floating point numbers  " << =
endl << endl;
     for (x=3D0;x<MAX; x++)
     {
      cout << " Enter number:" << x+1 << endl;
      cin >> number[x];
     }

cout <<"Press any key to show your numbers" << endl << endl << endl;
getche();
x=3D0;
     for (x=3D0;x<MAX;x++)
     {
      cout <<"float number:"<< x+1 <<" is";
      cout.width(10);
      cout << setprecision(2) << setiosflags(ios::fixed | =
ios::showpoint);
      cout << number[x];
      cout << endl << endl << endl;
     }
cout <<"Press any key to Exit The Program" << endl;
getche();
return(0);
}

Hello there,=20
The following code based on yours outputs the five floats, column width =
can be any integer number you want. I also initialised the variables, =
one of the reasons you had no output was that you did not tell the print =
statement to output the variable  number1 etc. although i think an =
earlier correspondent noticed this. The numbers line up ok, although the =
text"number1" and the actual value of the variable number1 are on =
different lines, there are ways round this but not without changing the =
code considerably. You would be better off looping this program anyway =
both for input and output.

#include <iostream>
#include <iomanip>
#include <conio.h>
using std::cout;
using std::cin;
using std::endl;
float number;

int main()
{
float number1=3D0, number2=3D0, number3=3D0, number4=3D0, number5=3D0;

cout << " Enter 5 floating point numbers " << endl;
cin >> number1 ;
cin >> number2 ;
cin >> number3 ;
cin >> number4 ;
cin >> number5 ;



cout << " The floating point numbers you entered are " << endl;

cout << " number 1 is  " <<endl;
cout.width(30);
cout << setprecision(2) << setiosflags(ios::fixed | ios::showpoint)<< =
number1  <<endl;

cout << " number 2 is  " <<endl;
cout.width(30);
cout << setprecision(2) << setiosflags(ios::fixed | ios::showpoint)<< =
number2  <<endl;

cout << " number 3 is  "<<endl;
cout.width(30);
cout << setprecision(2) << setiosflags(ios::fixed | ios::showpoint)<< =
number3  <<endl;

cout << " number 4 is  "<<endl;
cout.width(30);
cout << setprecision(2) << setiosflags(ios::fixed | ios::showpoint)<< =
number4  <<endl;

cout << " number 5 is  "<<endl;
cout.width(30);
cout << setprecision(2) << setiosflags(ios::fixed | ios::showpoint)<< =
number5  <<endl;
cout << "Here are the five floats you wanted"  <<endl;
cout <<endl <<endl <<endl;
cout << "Strike any key to exit program" <<endl;
getche();

return 0;
}
 =20

Do you need conio_mingw.h  for all these to work? Wouldn't <conio.h> do?


>From: Ricardo López Ruiz <ri...@po...>
>To: dev...@li...
>Subject: [Dev-C++] Re: getch()-getche()
>Date: Thu, 28 Mar 2002 18:39:34 +0100
>
>Finally I have found three different ways
>to implement the reading of a key without pressing RETURN.
>I report them if it can be of help for somebody.
>It works finely on my platform, but as it has been discussed
>in the last days, it is not sure that it runs well
>on other installations of  Dev-C++.
>Ricardo.
>
>*******************************************
>#include <iostream>
>#include <conio_mingw.h>
>int main()
>{
>    cout << "Enter any key." << endl;
>    getch();       //reads a char without return and without echo
>    cout << "Enter another key" << endl;
>    getche();      // reads a char without return and with echo
>    cout << "\n End is coming...Press a key" << endl;
>    while(!kbhit()) ;   // waits until you press a key
>
>    return(0);
>}
>********************************************
>
>
>_______________________________________________
>Dev-cpp-users mailing list
>Dev...@li...
>https://lists.sourceforge.net/lists/listinfo/dev-cpp-users


_________________________________________________________________
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Hello all

I've recently come across a program called "doc++", it is able of reading a 
C/C++ source file (or a list of source files), using ordinary comments or 
special ones to document the code. The output is generally HTML pages.

It seems simple and quick. I would like to know if anybody out there is 
using the tool and what you think about it.

thanks

--
gisan
gi...@li...

AFAICT that syntax error is because you haven't included the header =
needed for the pair template class.

Add: #include <utility>

Hope this helps, Jason.
  ----- Original Message -----=20
  From: vze3s3mw=20
  To: dev...@li...=20
  Sent: Sunday, March 31, 2002 3:39 AM
  Subject: [Dev-C++] Hash Table


  //Does anyone know what wrong with this program?
  //THIS IS THE ERROR MESSAGE:  syntax error before `('
  //Thank you!!!!!!!!!!!!!!


  #include  <iostream.h>
  #include  <fstream.h>
  #include  <string>
  //#include  "chaining.h"
    // we do not compute prime numbers but use a table instead
  // this table is lifted from the STL, see hashtable.h

  static const int num_primes =3D 25;
  static const unsigned long prime_list[] =3D
  {
    53,         97,         193,       389,       769,
    1543,       3079,       6151,      12289,     24593,
    49157,      98317,      196613,    393241,    786433,
    1572869,    3145739,    6291469,   12582917,  25165843,
    50331653,   100663319,  201326611, 402653189, 805306457
  };


  class  HashMap
  {
  public:
      // provide flexibility
      typedef string      key_type;
      typedef int         value_type;

  private:
      // hashtable entries=20
      struct   Entry
      {
   key_type     k;
   value_type   v;   =20
   bool         b;
  =20
   Entry(): k(), v(), b(false) {}
      };
     =20
      size_t        sz;  // number of entries
      size_t        nn;  // index to size table
      Entry        *ht;  // array of Entry's
     =20
  public:

      HashMap(): sz(0), nn(0), ht( new Entry[prime_list[0]] ) {}
     =20
     =20
      size_t    size()        const { return sz; }
      size_t    table_size()  const { return prime_list[nn]; }
      float     load_factor() const { return float(size())/table_size(); =
}

      size_t    hash( const key_type& k );

      pair<bool,size_t>   search( const key_type& k );
      size_t    insert( const key_type& k, const value_type& v );
      size_t    resize();

      value_type  operator[]( size_t i ) { return ht[i].v; }
      void   print_table();
  };

  main( int argc, char **argv )
  {
      if( argc !=3D 3 )
      {
          cerr << "Usage: " << argv[0] << " <file> <number of words>" << =
endl;
          exit(1);
      }

      HashMap   Table;


      ifstream  inf( argv[1] );
      if( !inf )
      {
   cerr << "cannot open " << argv[1] <<", exiting" << endl;
   exit(0);
      }
     =20
      int  n =3D atoi( argv[2] );
      int  cnt =3D 0;
      string  word;
     =20
      while(  inf >> word &&  cnt++ < n )=20
   Table.insert( word, word.size() );

      inf.close();
     =20
      Table.print_table();
      exit(EXIT_SUCCESS);
  }

//Does anyone know what wrong with this program?
//THIS IS THE ERROR MESSAGE:  syntax error before `('
//Thank you!!!!!!!!!!!!!!


#include  <iostream.h>
#include  <fstream.h>
#include  <string>
//#include  "chaining.h"
  // we do not compute prime numbers but use a table instead
// this table is lifted from the STL, see hashtable.h

static const int num_primes =3D 25;
static const unsigned long prime_list[] =3D
{
  53,         97,         193,       389,       769,
  1543,       3079,       6151,      12289,     24593,
  49157,      98317,      196613,    393241,    786433,
  1572869,    3145739,    6291469,   12582917,  25165843,
  50331653,   100663319,  201326611, 402653189, 805306457
};


class  HashMap
{
public:
    // provide flexibility
    typedef string      key_type;
    typedef int         value_type;

private:
    // hashtable entries=20
    struct   Entry
    {
 key_type     k;
 value_type   v;   =20
 bool         b;
=20
 Entry(): k(), v(), b(false) {}
    };
   =20
    size_t        sz;  // number of entries
    size_t        nn;  // index to size table
    Entry        *ht;  // array of Entry's
   =20
public:

    HashMap(): sz(0), nn(0), ht( new Entry[prime_list[0]] ) {}
   =20
   =20
    size_t    size()        const { return sz; }
    size_t    table_size()  const { return prime_list[nn]; }
    float     load_factor() const { return float(size())/table_size(); }

    size_t    hash( const key_type& k );

    pair<bool,size_t>   search( const key_type& k );
    size_t    insert( const key_type& k, const value_type& v );
    size_t    resize();

    value_type  operator[]( size_t i ) { return ht[i].v; }
    void   print_table();
};

main( int argc, char **argv )
{
    if( argc !=3D 3 )
    {
        cerr << "Usage: " << argv[0] << " <file> <number of words>" << =
endl;
        exit(1);
    }

    HashMap   Table;


    ifstream  inf( argv[1] );
    if( !inf )
    {
 cerr << "cannot open " << argv[1] <<", exiting" << endl;
 exit(0);
    }
   =20
    int  n =3D atoi( argv[2] );
    int  cnt =3D 0;
    string  word;
   =20
    while(  inf >> word &&  cnt++ < n )=20
 Table.insert( word, word.size() );

    inf.close();
   =20
    Table.print_table();
    exit(EXIT_SUCCESS);
}

It doesn't actualy output any of the numbers, i.e.

cout << " number 1 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint) << number1 << endl;

Another thing is that there are other ways of doing what you are doing =
which you may want to look up. I'm pretty sure there is a way to just =
set the precision and iosflags once and then it will use that for all =
output. Also by using for loops and an array of floats you can cut down =
on typing. It's not so bad for 5 floats, but imagine that you wanted to =
do 20.

Just a few thoughts for you.

Jason.
  ----- Original Message -----=20
  From: Charles Nicosia=20
  To: dev...@li...=20
  Sent: Saturday, March 30, 2002 4:21 AM
  Subject: Re: [Dev-C++] How do i correct a syntax error


  You need a main() function and semicolons after your cout's.  And you =
can't have spaces in your variable names.  It compiles fine now, but I'm =
not sure it does what you want it to.

  #include <iostream>
  #include <iomanip>
  using std::cout;
  using std::cin;
  using std::endl;
  float number;

  int main()
  {
  float number1, number2, number3, number4, number5;

  cout << " Enter 5 floating point numbers " << endl;
  cin >> number1 ;
  cin >> number2 ;
  cin >> number3 ;
  cin >> number4 ;
  cin >> number5 ;

  cout << " The floating point numbers are " << endl;
  cout << " number 1 is  " << setprecision(2)
       << setiosflags(ios::fixed | ios::showpoint);
  cout << " number 2 is  " << setprecision(2)
       << setiosflags(ios::fixed | ios::showpoint);
  cout << " number 3 is  " << setprecision(2)
       << setiosflags(ios::fixed | ios::showpoint);
  cout << " number 4 is  " << setprecision(2)
       << setiosflags(ios::fixed | ios::showpoint);
  cout << " number 5 is " << setprecision(2)
       << setiosflags(ios::fixed | ios::showpoint);
  return 0;
  }

Hi I'm new to this mailing list and I wonder if there is an history of all
messages posted...

I'm looking for any informations to access I/O under windows XP (NT/2000),
especially serial port.

Thank you !

Best regards

gUI

You need a main() function and semicolons after your cout's.  And you =
can't have spaces in your variable names.  It compiles fine now, but I'm =
not sure it does what you want it to.

#include <iostream>
#include <iomanip>
using std::cout;
using std::cin;
using std::endl;
float number;

int main()
{
float number1, number2, number3, number4, number5;

cout << " Enter 5 floating point numbers " << endl;
cin >> number1 ;
cin >> number2 ;
cin >> number3 ;
cin >> number4 ;
cin >> number5 ;

cout << " The floating point numbers are " << endl;
cout << " number 1 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint);
cout << " number 2 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint);
cout << " number 3 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint);
cout << " number 4 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint);
cout << " number 5 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint);
return 0;
}

/* file:omosefe.cpp
description:program to input 5 floating point numbers
programmer:Omosefe Bazuaye
Date:27th March 2002
*/
#include <iostream>
#include <iomanip>
using std::cout;
using std::cin;
using std::endl;
float number;
{
float number 1, number 2, number 3, number 4, number
5;
cout << " Enter 5 floating point numbers " << endl;
cin >> number 1 ;
cin >> number 2 ;
cin >> number 3 ;
cin >> number 4 ;
cin >> number 5 ;
cout << " The floating point numbers are " << endl;
cout << " number 1 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 2 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 3 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 4 is  " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 5 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
return 0;
}


The results of the complilation says i have syntax
errors and so i can't get any results.Please Help.
Thanks.

__________________________________________________
Do You Yahoo!?
Yahoo! Greetings - send holiday greetings for Easter, Passover
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Yeah finally something function, the weird header "#include =
<conio_mingw.h>" contains a kbhit() function like the one in microsoft =
visual C++, it is used for replace getch() like this:

while(!kbhit());

Thanx ricardo

Daniel Wilches M.
dwi...@ma...

I found a great refrence and i just thought id share it with you. A =
system wide hook is a great little thing that allows you to take =
controll of all applications in windows! So you can add an extra button =
to every window (next to the minimize button for example- there is a =
demo of this in one of the links on the page). You can also hack progs =
with it! I once downloaded a program that listens for the time event in =
minesweeper giving you a perfect score!

http://www.cpp.atfreeweb.com/Hooks.html

First you need to include stdlib.h

next you need to call the function srand() to initialize the random number 
generator
If the number you use is the same the same sequence of random numbers is
generated, because of this it is normal to use the time function to 
initialize the
generator as the time is constantly changing e.g. srand(time(NULL));
N.B. You need to include time.h to get the time function.

next you want to call the rand function to get your random number
N.B. the rand function returns a random number between 0 and RAND_MAX
usually you wish a number within a certain range the following formula 
should help you.

lower_bound + rand() % (upper_bound - lower_bound + 1)
eg.  To get a random number between 1 and 10 (inclusive) the following 
should sufice

1 + rand() % (10 - 1 + 1);

In C:


#include <stdlib.h>
#include <time.h>


...
int r;
srand(time(NULL));

...

/* One random number from 0 to RAND_MAX (which can't be larger than
32767 */
r=rand();

...

/* Another random number */
r=rand();



Using RAND_MAX you can get any range you want in a portable way!



Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys

<html><div style='background-color:'><DIV>
<P>Well you could try something like this...</P>
<P>NOTE: These are in C so if anyone has the C++ version let me know!</P>
<P>int rnd(void)&nbsp;&nbsp; // Remember to declare elsewhere by typing int rnd(void);</P>
<P>{</P>
<P>int r;</P>
<P>r = rand();</P>
<P>return(r);<BR></P>
<P>}<BR></P>
<P>&nbsp;</P>
<P>Or you may like to "seed" the randomiser whereby you give it more numbers to base its calculations on and mess things up more (so it's "more" random).</P>
<P>void main()&nbsp;&nbsp;&nbsp; // Or int main()</P>
<P>{</P>
<P>&nbsp;&nbsp; int x;</P>
<P>&nbsp;&nbsp; seedrnd();</P>
<P>&nbsp;&nbsp; for(x=0;x&lt;100;x++)</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; printf("%i\t", rnd());</P>
<P>}</P>
<P>int rnd(void)</P>
<P>{</P>
<P>&nbsp;&nbsp; int r;</P>
<P>&nbsp;&nbsp; r=rand();</P>
<P>&nbsp;&nbsp; return(r);</P>
<P>}</P>
<P>void seedrnd(void)</P>
<P>{</P>
<P>&nbsp;&nbsp; int seed;</P>
<P>&nbsp;&nbsp; char s[6];</P>
<P>&nbsp;&nbsp; printf("Enter a random number:");</P>
<P>&nbsp;&nbsp; seed=(unsigned)atoi(gets(s));</P>
<P>&nbsp;&nbsp; srand(seed);</P>
<P>}</P>
<P>&nbsp;</P>
<P>There are easier ways of doing it of course, but I'll leave that for others to inform you.</P>
<P>&nbsp;</P>
<P>Daniel</P>
<P>&nbsp;</P>
<P>&nbsp;</P></DIV>
<DIV></DIV>
<DIV></DIV>&gt;From: "chromatonus 712" <CHR...@HO...>
<DIV></DIV>&gt;To: dev...@li... 
<DIV></DIV>&gt;Subject: [Dev-C++] How do you get random numbers in devc++? 
<DIV></DIV>&gt;Date: Fri, 29 Mar 2002 02:28:50 +0000 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;_________________________________________________________________ 
<DIV></DIV>&gt;Get your FREE download of MSN Explorer at 
<DIV></DIV>&gt;http://explorer.msn.com/intl.asp. 
<DIV></DIV>&gt; 
<DIV></DIV>&gt; 
<DIV></DIV>&gt;_______________________________________________ 
<DIV></DIV>&gt;Dev-cpp-users mailing list 
<DIV></DIV>&gt;Dev...@li... 
<DIV></DIV>&gt;https://lists.sourceforge.net/lists/listinfo/dev-cpp-users 
<DIV></DIV></div><br clear=all><hr>Chat with friends online, try MSN Messenger: <a href='http://g.msn.com/1HM305301/11'>Click Here</a><br></html>

dou...@ya...

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At 03:26 28/03/02 -0500, Ib...@ao... wrote:
>  ...
>hi,
>experts please,i really need ur help on this one,the complier results is that
>i have syntax errors and i have tried everything ,please help.
>omosefe.

the following code works, check it against the lines you posted. If you 
have questions, let us know.

#include <iomanip>

// all ANSI C++ programs require a "main" function.
int
main()
{
         float number1; // first number
         float number2; // second number

         std::cout << "Enter 2 floating point numbers" << std::endl;
         std::cin >> number1 >> number2; // one instruction reads both

         // remember that some settings are active until you change them,
         // the precision and the way real numbers are displayed are an
         // example.

         std::cout << "The floating point numbers are:\n"
                   << std::setprecision(2)
                   << std::setiosflags(std::ios::fixed | std::ios::showpoint)
                   << "number1 is: " << number1 << '\n'
                   << "number2 is: " << number2 << '\n';
}


--
gisan
gi...@li...

Finally I have found three different ways
to implement the reading of a key without pressing RETURN.
I report them if it can be of help for somebody.
It works finely on my platform, but as it has been discussed
in the last days, it is not sure that it runs well
on other installations of  Dev-C++.
Ricardo.

*******************************************
#include <iostream>
#include <conio_mingw.h>
int main()
{
    cout << "Enter any key." << endl;
    getch();       //reads a char without return and without echo
    cout << "Enter another key" << endl;
    getche();      // reads a char without return and with echo
    cout << "\n End is coming...Press a key" << endl;
    while(!kbhit()) ;   // waits until you press a key

    return(0);
}
********************************************

unsuscribe

=========================
Leonardo Vejar Gasc
Ingenieria Civil Informatica
Universidad del BioBio
Concepcion--CHILE

/* file:omosefe.cpp
description:program to input 5 floating point numbers
programmer:Omosefe 
Date:27th March 2002
*/
#include <iostream>
#include <iomanip>
using std::cout;
using std::cin;
using std::endl;
float number
{
float number 1, number 2, number 3, number 4, number 5;
cout << "Enter 5 floating point numbers" << endl;
cin >> number 1;
cin >> number 2;
cin >> number 3;
cin >> number 4;
cin >> number 5;
cout << "The floating point numbers are" << endl;
cout << " number 1 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 2 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 3 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 4 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
cout << " number 5 is " << setprecision(2)
     << setiosflags(ios::fixed | ios::showpoint)
return 0;
}

hi,
experts please,i really need ur help on this one,the complier results is that 
i have syntax errors and i have tried everything ,please help.
omosefe.

I posted a question about using inline assembly in my program
Unfortunately I did not get an answer that worked.

I searched the internet and I found a tutorial that should help
whoever else it was that was asking similar questions

it is located here 
http://www.geocities.com/SiliconValley/Ridge/2544/cprog/rmiyagi-inline-asm.txt

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf Of VIP
> Sent: Wednesday, March 27, 2002 12:51 PM
> To: dev...@li...
> Subject: [Dev-C++] I need help !
> 
> 
> Dear experts,
> I hope you are well and I hope you are enjoying
> yourtime ...
> My Q is ... Can I do windows program in Dev-C++ ? and
> how ? and if there are any website can I learn how to
> do it ...
> I'm feeling boring to do program for dos ... I need to
> do a program like that what can the guys do it in VB
> and VC++ ...
> BUT IN DEV-C++



Yes by using the Win32 API which is a library of C functions and comes
with Dev-C++. So buy a book for Win32 API. You can also add other
external API libraries. Win32 API is supported by all Windows compilers
(Visual C++, Borland C++ Builder, e.t.c.).



Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
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