Write a small C program to determine whether a machine's type is
little-endian or big-endian.
Jun 28 '07
23  14186 
In article <f6**********@m urdoch.hpl.hp.c om>, Chris Dollin
<ch**********@h p.comwrites
>guthena wrote:
>Write a small C program to determine whether a machine's type is
little-endian or big-endian.
OK, I've done that.
To save time please put Guthena's name at the top and email it direct
to his lecturer.
Further to save time can I email my homework direct to you in the
future?
Chris (The other one)
--
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/
/\/\/ ch***@phaedsys. org www.phaedsys.org \/\/\
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
On 28 Jun, 20:01, guthena <r4r...@gmail.c omwrote:
Write a small C program to determine whether a machine's type is
little-endian or big-endian.
No
Chris Hills wrote:
In article <f6**********@m urdoch.hpl.hp.c om>, Chris Dollin
<ch**********@h p.comwrites
>>guthena wrote:
>>Write a small C program to determine whether a machine's type is
little-endian or big-endian.
OK, I've done that.
To save time please put Guthena's name at the top and email it direct
to his lecturer.
You missed my signature, yes?
Further to save time can I email my homework direct to you in the
future?
No problem.
Chris (The other one)
I thought you were the /other/ other one. /The/ Chris, of course, being
Chris Torek.
--
Chris "not Hilly, but definitely not flat" Dollin
Hewlett-Packard Limited Cain Road, Bracknell, registered no:
registered office: Berks RG12 1HN 690597 England
Tejas Kokje <bi************ *@gmail.comwrot e:
On Jun 28, 12:01 pm, guthena <r4r...@gmail.c omwrote:
Write a small C program to determine whether a machine's type is
little-endian or big-endian.
Here you go..
int main()
{
int num=1;
char *cptr;
cptr = (char *)#
if (*cptr)
printf ("little endian\n");
else
printf ("big endian\n");
return 0;
}
Which company interview question is this ? :-D
Congratulations . You just did his homework for him. Since it's a crappy
assignment, his teacher probably thinks he did a sterling job, he'll
probably pass the course on the back of your work, and he'll end up
holding a job as a programmer _still_ thinking that this is a good
program. Which it is not; it is flawed for several reasons. I presume
_you_ will be the one to clean up after his incompetent behind, not us?
Richard
In article <f6**********@m urdoch.hpl.hp.c om>, Chris Dollin
<ch**********@h p.comwrites
>Chris Hills wrote:
>In article <f6**********@m urdoch.hpl.hp.c om>, Chris Dollin
<ch**********@ hp.comwrites
>>>guthena wrote:
Write a small C program to determine whether a machine's type is
little-endian or big-endian.
OK, I've done that.
To save time please put Guthena's name at the top and email it direct
to his lecturer.
You missed my signature, yes?
>Further to save time can I email my homework direct to you in the
future?
No problem.
>Chris (The other one)
I thought you were the /other/ other one. /The/ Chris, of course, being
Chris Torek.
Who?
Why?
--
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/
/\/\/ ch***@phaedsys. org www.phaedsys.org \/\/\
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
On Jun 29, 3:22 pm, r...@hoekstra-uitgeverij.nl (Richard Bos) wrote:
Tejas Kokje <binarysemaph.. .@gmail.comwrot e:
On Jun 28, 12:01 pm, guthena <r4r...@gmail.c omwrote:
Write a small C program to determine whether a machine's type is
little-endian or big-endian.
Here you go..
int main()
{
int num=1;
char *cptr;
cptr = (char *)#
if (*cptr)
printf ("little endian\n");
else
printf ("big endian\n");
return 0;
}
Which company interview question is this ? :-D
Congratulations . You just did his homework for him. Since it's a crappy
assignment,
This most probably isn't a homework question. Its a typical question
thats asked mostly in interviews in India.
his teacher probably thinks he did a sterling job, he'll
probably pass the course on the back of your work, and he'll end up
holding a job as a programmer _still_ thinking that this is a good
program. Which it is not; it is flawed for several reasons.
Can you tell me how it is flawed? Is it because of casting from int*
to char* ?
Chris Hills wrote:
In article <f6**********@m urdoch.hpl.hp.c om>, Chris Dollin
<ch**********@h p.comwrites
>>I thought you were the /other/ other one. /The/ Chris, of course, being
Chris Torek.
Who?
You're /surely/ not serious.
Why?
You're /surely/ not serious.
--
Chris "!?" Dollin
Hewlett-Packard Limited registered office: Cain Road, Bracknell,
registered no: 690597 England Berks RG12 1HN
In article <f6**********@p c-news.cogsci.ed. ac.uk>,
Richard Tobin <ri*****@cogsci .ed.ac.ukwrote:
>*Any* test of endianness is bound to use implementation-defined or
undefined behaviour, otherwise all machines would be found to have the
same endianness!
Take an unsigned integral type. C promises no internal padding
and no trap representations . Initialize it. Take its address and cast the
address to unsigned char pointer. C defines this transformation
as being possible and that the resulting unsigned chars will
each have no internal non-value bits and no trap representations .
Now read through the unsigned char array. If the sizeof the
unsigned integral type exceeds the number of bits you initialized
to, then the value bits may be spread out in unusual ways,
most likely by all-0 unsigned char showing up, but perhaps more
complicated patterns are possible? (I'd have to go back and
re-check the values implementation clause.) But you could track
each bit by shifting it through the unsigned integral type and
seeing where it shows up in the unsigned char array.
Tracking down non-value bits and sign representation for signed
integral types -- that's harder.
--
"It is important to remember that when it comes to law, computers
never make copies, only human beings make copies. Computers are given
commands, not permission. Only people can be given permission."
-- Brad Templeton
Chris Dollin wrote:
Chris Hills wrote:
>In article <f6**********@m urdoch.hpl.hp.c om>, Chris Dollin
<ch**********@ hp.comwrites
>>I thought you were the /other/ other one. /The/ Chris, of course, being
Chris Torek.
Who?
You're /surely/ not serious.
>Why?
You're /surely/ not serious.
He is. And stop calling him Shirley.
--
clvrmnky <mailto:sp***** *@clevermonkey. org>
Direct replies will be blacklisted. Replace "spamtrap" with my name to
contact me directly.
Spade wrote:
>
.... snip ...
>
Can you tell me how it is flawed? Is it because of casting from
int* to char* ?
For example, with a 32 bit int, you have 32 places for the most
sig. bit, 31 for the next bit, etc. for 32! total possibilities.
Yes, some combinations are more likely, but that isn't detecting,
it is discriminating.
--
<http://www.cs.auckland .ac.nz/~pgut001/pubs/vista_cost.txt>
<http://www.securityfoc us.com/columnists/423>
<http://www.aaxnet.com/editor/edit043.html>
cbfalconer at maineline dot net
--
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