From: Jason DiCioccio <geniusj@...>
Date: 2002-03-30T08:43:11+09:00
Subject: RE: Decimal->Hex

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irb(main):001:0> blah =3D 15
15
irb(main):002:0> blahblah =3D ""
""
irb(main):003:0> printf("%X", blah)
Fnil

(looks good so far . . .)

irb(main):004:0> sprintf(blahblah, "%X", blah)
""
irb(main):005:0> blahblah
""

I had tried this earlier actually with the same results (forgot to
mention it).. I might be doing something wrong this time as well.
Am I missing something simple? :)

It seems to work in C though:

----
#include <stdio.h>

int
main( void )
{
  int blah =3D 15;
  char blahblah[8];

  printf("printf: %X\r\n", blah);
  sprintf(blahblah, "%X", blah);
  printf("after sprintf: %s\r\n", blahblah);

  return( 0 );
}
----

FYI, ruby 1.6.7 (2002-03-01) [i386-freebsd4]

Thanks again,
-JD-

--On Saturday, March 30, 2002 8:28 AM +0900 "QUEISSER,ANDREW=20
(HP-Corvallis,ex1)" <andrew_queisser@hp.com> wrote:

> You can use sprintf, just like in the good old C days
> but in Ruby sprintf returns a string.
>
> Andrew
>
>
>> -----Original Message-----
>> From: DiCioccio, Jason [mailto:jdicioccio@epylon.com]
>> Sent: Friday, March 29, 2002 2:51 PM
>> To: ruby-talk@ruby-lang.org
>> Subject: Decimal->Hex
>>
>>
>>
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> I have a feeling I might be missing something very simple
>> here.  But I found
>> a method to convert a string representing a hexadecimal value
>> into a Fixnum
>> (String#hex).  Is there a way to convert it back now?
>>
>> Thanks in advance,
>> - -JD-
>>
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