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Re: Using cout to print hex values; surely you can't be serious

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On 02/ 9/12 09:16 PM, gwowen wrote:
> On Feb 9, 7:22 am, Ian Collins<ian-n...@hotmail.com>  wrote:
>>> If you are afraid that char is 32 or 64 bits on some platform and might not
>>> fit into the buffer, you can make the buffer e.g. 17 bytes long as a
>>> precaution.
>>
>> The buffer is an array of char, so it will always be big enough no
>> matter how big a char is (in c++ terms it is always 1).
>
> A char value bigger than 255 will need three (or more) char's to hold
> its ascii hex representation.  No matter how big a char is, once
> you're representing it as an ASCII sequence of 0-9A-F, you're going to
> need a string of length ~ log_16(CHAR_MAX).  Just like you need 3
> bytes to hold the ascii decimal representation of an 8-bit char now, "
> 0"-"255"

Don't forget the the format string was "%02X"..

-- 
Ian Collins

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Using cout to print hex values; surely you can't be serious Chris Stankevitz <chrisstankevitz@gmail.com> - 2012-02-07 21:16 -0800
  Re: Using cout to print hex values; surely you can't be serious gwowen <gwowen@gmail.com> - 2012-02-08 03:54 -0800
  Re: Using cout to print hex values; surely you can't be serious Victor Bazarov <v.bazarov@comcast.invalid> - 2012-02-08 08:15 -0500
    Re: Using cout to print hex values; surely you can't be serious gwowen <gwowen@gmail.com> - 2012-02-08 06:49 -0800
      Re: Using cout to print hex values; surely you can't be serious "io_x" <a@b.c.invalid> - 2012-02-19 18:24 +0100
        Re: Using cout to print hex values; surely you can't be serious 88888 Dihedral <dihedral88888@googlemail.com> - 2012-02-20 03:19 -0800
          Re: Using cout to print hex values; surely you can't be serious 88888 Dihedral <dihedral88888@googlemail.com> - 2012-02-21 03:08 -0800
    Re: Using cout to print hex values; surely you can't be serious Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-02-08 15:20 +0000
  Re: Using cout to print hex values; surely you can't be serious Leigh Johnston <leigh@i42.co.uk> - 2012-02-08 14:20 +0000
  Re: Using cout to print hex values; surely you can't be serious Paavo Helde <myfirstname@osa.pri.ee> - 2012-02-09 00:41 -0600
    Re: Using cout to print hex values; surely you can't be serious Ian Collins <ian-news@hotmail.com> - 2012-02-09 20:22 +1300
      Re: Using cout to print hex values; surely you can't be serious gwowen <gwowen@gmail.com> - 2012-02-09 00:16 -0800
        Re: Using cout to print hex values; surely you can't be serious Ian Collins <ian-news@hotmail.com> - 2012-02-09 21:44 +1300
          Re: Using cout to print hex values; surely you can't be serious Juha Nieminen <nospam@thanks.invalid> - 2012-02-09 10:36 +0000
          Re: Using cout to print hex values; surely you can't be serious gwowen <gwowen@gmail.com> - 2012-02-09 03:56 -0800
            Re: Using cout to print hex values; surely you can't be serious scott@slp53.sl.home (Scott Lurndal) - 2012-02-09 17:06 +0000
              Re: Using cout to print hex values; surely you can't be serious Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-02-12 15:59 +0000
    Re: Using cout to print hex values; surely you can't be serious scott@slp53.sl.home (Scott Lurndal) - 2012-02-09 17:04 +0000

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