Re: [Dev-C++] Casting of int to string

[Philip B. <phi...@pb...>]

Sorry, I should've phrased it differently. Yup, allocating too little =
memory is a bad idea in any situation because the function has no way of =
knowing when it is supposed to stop writing. I just put 32 in there =
because it ensures (100 %) that the entire value will be stored =
including the Null terminator.

  Regards
  Philip Bennefall
  ----- Original Message -----=20
  From: Jonathan Winterflood=20
  To: Jan Mura=20
  Cc: dev...@li...=20
  Sent: Monday, May 07, 2007 9:08 AM
  Subject: Re: [Dev-C++] Casting of int to string


  Just a note:
  """ It basically prints your integer into the character array, as long =
as there is enough space to hold it """
  Actually it will print the integer whether there is enough space or =
not.. It is entirely Your job to make sure there is enough space, or =
else sprintf will just keep on printing in memory after the end of the =
array. Obviously this is a very bad idea, since there is other data =
there.=20
  In this case, determining the necessary space is as easy as 'what's =
the maximum digit count in an integer'... but in other cases, you can =
get wierd crashes, wrong data for no apparent reason, or even create an =
exploit in your program.=20

  Thought you might want to know that (and if you did, no offense =
intended :)
  Jonathan


  On 5/7/07, Philip Bennefall < phi...@pb...> wrote:
    This will do the job.
    char outputstring[32];
    sprintf(outputstring, "%d", integer);

    It basically prints your integer into the character array, as long =
as there
    is enough space to hold it. This method works both in C and C++. =
There are=20
    other methods such as stringstream, but they only work in C++. If =
you're
    compiling a C program, for this function to work you need to include =
stdio.h
    and for C++ it is cstdio.

    Regards
    Philip Bennefall=20
    ----- Original Message -----
    From: "Jan Mura" <jan...@vo...>
    To: <dev...@li... >
    Sent: Monday, May 07, 2007 8:26 AM
    Subject: [Dev-C++] Casting of int to string


    > Hello,
    >
    > I would like to compare an integer with a string using strcmp(). =
So I need
    > to cast the int type to string (*char). Is there some commone way =
how to=20
    > do
    > it. Should I use & operator and adress of  int in teh function? Or
    > something
    > else?
    >
    > Thank you very much
    >
    > Jan Mura
    >
    >
    > =
-------------------------------------------------------------------------=
=20
    > This SF.net email is sponsored by DB2 Express
    > Download DB2 Express C - the FREE version of DB2 express and take
    > control of your XML. No limits. Just data. Click to get it now.
    > http://sourceforge.net/powerbar/db2/
    > _______________________________________________
    > Dev-cpp-users mailing list
    > Dev...@li...=20
    > TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
    > https://lists.sourceforge.net/lists/listinfo/dev-cpp-users=20
    >


    =
-------------------------------------------------------------------------=

    This SF.net email is sponsored by DB2 Express
    Download DB2 Express C - the FREE version of DB2 express and take
    control of your XML. No limits. Just data. Click to get it now.=20
    http://sourceforge.net/powerbar/db2/
    _______________________________________________
    Dev-cpp-users mailing list
    Dev...@li...
    TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
    https://lists.sourceforge.net/lists/listinfo/dev-cpp-users




  --=20
  <Morpheus> linux, c'est une question de VI ou de MORE=20


-------------------------------------------------------------------------=
-----


  =
-------------------------------------------------------------------------=

  This SF.net email is sponsored by DB2 Express
  Download DB2 Express C - the FREE version of DB2 express and take
  control of your XML. No limits. Just data. Click to get it now.
  http://sourceforge.net/powerbar/db2/


-------------------------------------------------------------------------=
-----


  _______________________________________________
  Dev-cpp-users mailing list
  Dev...@li...
  TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
  https://lists.sourceforge.net/lists/listinfo/dev-cpp-users