Re: [algogeeks] Re: size of self referential structure
for compiler giving 8 bit for pointers, shouldn't int also be of 8 bits??
On Thu, Jul 28, 2011 at 12:26 PM, Jnana Sagar wrote:
> @aditya..the answer may vary, because c is machine dependent
> language..in few machines int is of 2 bytes and char is of 1 byte..u
> can't say..it varies with diff machines
>
> On 7/26/11, aditya kumar wrote:
> > char *s[5] is a array of pointers of type char . but the thing is size of
> > pointers is 4byte irrespective of its type . coz address is always an
> > unsigned int which is of 4byte.
> > On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> > wrote:
> >
> >> @everyone:
> >> I have this mind strangling doubt..!!!
> >>
> >> Why is "char *s[5]" of 20 bytes...?
> >>
> >> yes the output is 28...
> >>
> >> On 7/26/11, Don wrote:
> >> > A reasonable guess would be 28 bytes. But the size of a structure is
> >> > implementation dependent, and therefore, some other result could be
> >> > correct as well.
> >> > Don
> >> >
> >> > On Jul 26, 7:40 am, Puneet Gautam wrote:
> >> >> #include
> >> >> #include
> >> >> struct node{
> >> >>int a;
> >> >>char *b[5];
> >> >>struct node *link;
> >> >>};
> >> >> main()
> >> >> {
> >> >> int a;
> >> >> a=sizeof(struct node);
> >> >> printf("%d",a);
> >> >> getchar();
> >> >> return 0;
> >> >> }
> >> >>
> >> >> Whats the output..?
> >> >
> >> > --
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Re: [algogeeks] Re: size of self referential structure
@aditya..the answer may vary, because c is machine dependent
language..in few machines int is of 2 bytes and char is of 1 byte..u
can't say..it varies with diff machines
On 7/26/11, aditya kumar wrote:
> char *s[5] is a array of pointers of type char . but the thing is size of
> pointers is 4byte irrespective of its type . coz address is always an
> unsigned int which is of 4byte.
> On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> wrote:
>
>> @everyone:
>> I have this mind strangling doubt..!!!
>>
>> Why is "char *s[5]" of 20 bytes...?
>>
>> yes the output is 28...
>>
>> On 7/26/11, Don wrote:
>> > A reasonable guess would be 28 bytes. But the size of a structure is
>> > implementation dependent, and therefore, some other result could be
>> > correct as well.
>> > Don
>> >
>> > On Jul 26, 7:40 am, Puneet Gautam wrote:
>> >> #include
>> >> #include
>> >> struct node{
>> >>int a;
>> >>char *b[5];
>> >>struct node *link;
>> >>};
>> >> main()
>> >> {
>> >> int a;
>> >> a=sizeof(struct node);
>> >> printf("%d",a);
>> >> getchar();
>> >> return 0;
>> >> }
>> >>
>> >> Whats the output..?
>> >
>> > --
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>> >
>> >
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Re: Re : [algogeeks] Re: size of self referential structure
Okay. I was a bit wrongactually the thing is that The exact number of bytes allocated for various C data types depends on *both the machine and the compiler.** *so it may be the that the compiler u are using is 32 bit.. one thing that u can try out is that on ubuntu install 64 bit codeblocks ide. i think u will get size of pointers as 8 bytes. -- Sunny Aggrawal B-Tech IV year,CSI Indian Institute Of Technology,Roorkee -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
@ sunny ; i am working on 64 bit windows 7 with dev and also in gcc + ubuntu 64 bit ... am using i3 processor that is 64 bit... what should do to get size 8 byte ? -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
On Wed, Jul 27, 2011 at 2:18 PM, hary rathor wrote: > @sunny : what you means by machine dependent means 64 bit: you means by > compiler / operating system /computer architecture ? > because i never get size of pointer 8 byte. if your statement true then > tell me which compiler / operating system /computer architecture i should > have get this output 8. > > A 64 bit machine running a 64 bit OS, on which using a compiler targeted for 64 bit executable will give you pointer size of 8. -- -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
computer architecture !!! 64 bit machine has word size of 8 bytes so pointers are of 8 bytes you never got size as 8 byte because u might be working on a 32 bit machine !! On Wed, Jul 27, 2011 at 2:18 PM, hary rathor wrote: > @sunny : what you means by machine dependent means 64 bit: you means by > compiler / operating system /computer architecture ? > because i never get size of pointer 8 byte. if your statement true then > tell me which compiler / operating system /computer architecture i should > have get this output 8. > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Sunny Aggrawal B-Tech IV year,CSI Indian Institute Of Technology,Roorkee -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
@sunny : what you means by machine dependent means 64 bit: you means by compiler / operating system /computer architecture ? because i never get size of pointer 8 byte. if your statement true then tell me which compiler / operating system /computer architecture i should have get this output 8. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
yes on a 64 bit machine ans will be 4+5*8+8 = 52 bytes pointers take 8 byte on 64 bit machine On Tue, Jul 26, 2011 at 8:00 PM, vaibhav shukla wrote: > will there be any difference in size on 32 machine and on 64 bit machine ? > how and what ? > > On Tue, Jul 26, 2011 at 7:58 PM, kavitha nk wrote: > >> >> >> sry frendzma above posts were wrongans is 28 if ptr takes 4 >> bytes... >> //BE COOL// kavi >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to algogeeks@googlegroups.com. >> To unsubscribe from this group, send email to >> algogeeks+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > best wishes!! > Vaibhav > > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Sunny Aggrawal B-Tech IV year,CSI Indian Institute Of Technology,Roorkee -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
will there be any difference in size on 32 machine and on 64 bit machine ? how and what ? On Tue, Jul 26, 2011 at 7:58 PM, kavitha nk wrote: > > > sry frendzma above posts were wrongans is 28 if ptr takes 4 > bytes... > //BE COOL// kavi > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- best wishes!! Vaibhav -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: Re : [algogeeks] Re: size of self referential structure
sry frendzma above posts were wrongans is 28 if ptr takes 4 bytes... //BE COOL// kavi -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re : [algogeeks] Re: size of self referential structure
> On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam > wrote: > >> @everyone: >> I have this mind strangling doubt..!!! >> >> Why is "char *s[5]" of 20 bytes...? >> 5 x sizeof (*s). do you see ? -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re : [algogeeks] Re: size of self referential structure
It is not 28 ?
4 sizeof(int) + 20 + 4 (ptr). And no padding, cos' all is mutiple of 4.
>> > On Jul 26, 7:40 am, Puneet Gautam wrote:
>> >> #include
>> >> #include
>> >> struct node{
>> >> int a;
>> >> char *b[5];
>> >> struct node *link;
>> >> };
>> >> main()
>> >> {
>> >> int a;
>> >> a=sizeof(struct node);
>> >> printf("%d",a);
>> >> getchar();
>> >> return 0;
>> >> }
>> >>
>> >> Whats the output..?
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Re: [algogeeks] Re: size of self referential structure
sry memory...
On 7/26/11, Akshata Sharma wrote:
> @kavitha, what is m/y?
>
> On Tue, Jul 26, 2011 at 7:27 PM, kavitha nk wrote:
>
>> the link ll not occupy any m/y here...so its output ll be 14(int -4
>> bytes,ptr-2 bytes);;if i'm wrong jst crct it...
>>
>>
>> On 7/26/11, Prem Krishna Chettri wrote:
>> > Its Cos that is pointer and all pointers is 4 bytes address..
>> >
>> > On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
>> > wrote:
>> >
>> >> @everyone:
>> >> I have this mind strangling doubt..!!!
>> >>
>> >> Why is "char *s[5]" of 20 bytes...?
>> >>
>> >> yes the output is 28...
>> >>
>> >> On 7/26/11, Don wrote:
>> >> > A reasonable guess would be 28 bytes. But the size of a structure is
>> >> > implementation dependent, and therefore, some other result could be
>> >> > correct as well.
>> >> > Don
>> >> >
>> >> > On Jul 26, 7:40 am, Puneet Gautam wrote:
>> >> >> #include
>> >> >> #include
>> >> >> struct node{
>> >> >>int a;
>> >> >>char *b[5];
>> >> >>struct node *link;
>> >> >>};
>> >> >> main()
>> >> >> {
>> >> >> int a;
>> >> >> a=sizeof(struct node);
>> >> >> printf("%d",a);
>> >> >> getchar();
>> >> >> return 0;
>> >> >> }
>> >> >>
>> >> >> Whats the output..?
>> >> >
>> >> > --
>> >> > You received this message because you are subscribed to the Google
>> >> > Groups
>> >> > "Algorithm Geeks" group.
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>> >> >
>> >>
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Re: [algogeeks] Re: size of self referential structure
@kavitha, what is m/y?
On Tue, Jul 26, 2011 at 7:27 PM, kavitha nk wrote:
> the link ll not occupy any m/y here...so its output ll be 14(int -4
> bytes,ptr-2 bytes);;if i'm wrong jst crct it...
>
>
> On 7/26/11, Prem Krishna Chettri wrote:
> > Its Cos that is pointer and all pointers is 4 bytes address..
> >
> > On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> > wrote:
> >
> >> @everyone:
> >> I have this mind strangling doubt..!!!
> >>
> >> Why is "char *s[5]" of 20 bytes...?
> >>
> >> yes the output is 28...
> >>
> >> On 7/26/11, Don wrote:
> >> > A reasonable guess would be 28 bytes. But the size of a structure is
> >> > implementation dependent, and therefore, some other result could be
> >> > correct as well.
> >> > Don
> >> >
> >> > On Jul 26, 7:40 am, Puneet Gautam wrote:
> >> >> #include
> >> >> #include
> >> >> struct node{
> >> >>int a;
> >> >>char *b[5];
> >> >>struct node *link;
> >> >>};
> >> >> main()
> >> >> {
> >> >> int a;
> >> >> a=sizeof(struct node);
> >> >> printf("%d",a);
> >> >> getchar();
> >> >> return 0;
> >> >> }
> >> >>
> >> >> Whats the output..?
> >> >
> >> > --
> >> > You received this message because you are subscribed to the Google
> >> > Groups
> >> > "Algorithm Geeks" group.
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Re: [algogeeks] Re: size of self referential structure
the link ll not occupy any m/y here...so its output ll be 14(int -4
bytes,ptr-2 bytes);;if i'm wrong jst crct it...
On 7/26/11, Prem Krishna Chettri wrote:
> Its Cos that is pointer and all pointers is 4 bytes address..
>
> On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> wrote:
>
>> @everyone:
>> I have this mind strangling doubt..!!!
>>
>> Why is "char *s[5]" of 20 bytes...?
>>
>> yes the output is 28...
>>
>> On 7/26/11, Don wrote:
>> > A reasonable guess would be 28 bytes. But the size of a structure is
>> > implementation dependent, and therefore, some other result could be
>> > correct as well.
>> > Don
>> >
>> > On Jul 26, 7:40 am, Puneet Gautam wrote:
>> >> #include
>> >> #include
>> >> struct node{
>> >>int a;
>> >>char *b[5];
>> >>struct node *link;
>> >>};
>> >> main()
>> >> {
>> >> int a;
>> >> a=sizeof(struct node);
>> >> printf("%d",a);
>> >> getchar();
>> >> return 0;
>> >> }
>> >>
>> >> Whats the output..?
>> >
>> > --
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Re: [algogeeks] Re: size of self referential structure
padding..
4 byes int + 3 padding bytes + 5 char bytes + 4 bytes pointer =16
On Tue, Jul 26, 2011 at 7:22 PM, Puneet Gautam wrote:
> for the above mentioned code, in previous post,: shudnt the output be
> 4+5+4=13?
>
> On 7/26/11, Prem Krishna Chettri wrote:
> > Its Cos that is pointer and all pointers is 4 bytes address..
> >
> > On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> > wrote:
> >
> >> @everyone:
> >> I have this mind strangling doubt..!!!
> >>
> >> Why is "char *s[5]" of 20 bytes...?
> >>
> >> yes the output is 28...
> >>
> >> On 7/26/11, Don wrote:
> >> > A reasonable guess would be 28 bytes. But the size of a structure is
> >> > implementation dependent, and therefore, some other result could be
> >> > correct as well.
> >> > Don
> >> >
> >> > On Jul 26, 7:40 am, Puneet Gautam wrote:
> >> >> #include
> >> >> #include
> >> >> struct node{
> >> >>int a;
> >> >>char *b[5];
> >> >>struct node *link;
> >> >>};
> >> >> main()
> >> >> {
> >> >> int a;
> >> >> a=sizeof(struct node);
> >> >> printf("%d",a);
> >> >> getchar();
> >> >> return 0;
> >> >> }
> >> >>
> >> >> Whats the output..?
> >> >
> >> > --
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Re: [algogeeks] Re: size of self referential structure
for the above mentioned code, in previous post,: shudnt the output be 4+5+4=13?
On 7/26/11, Prem Krishna Chettri wrote:
> Its Cos that is pointer and all pointers is 4 bytes address..
>
> On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> wrote:
>
>> @everyone:
>> I have this mind strangling doubt..!!!
>>
>> Why is "char *s[5]" of 20 bytes...?
>>
>> yes the output is 28...
>>
>> On 7/26/11, Don wrote:
>> > A reasonable guess would be 28 bytes. But the size of a structure is
>> > implementation dependent, and therefore, some other result could be
>> > correct as well.
>> > Don
>> >
>> > On Jul 26, 7:40 am, Puneet Gautam wrote:
>> >> #include
>> >> #include
>> >> struct node{
>> >>int a;
>> >>char *b[5];
>> >>struct node *link;
>> >>};
>> >> main()
>> >> {
>> >> int a;
>> >> a=sizeof(struct node);
>> >> printf("%d",a);
>> >> getchar();
>> >> return 0;
>> >> }
>> >>
>> >> Whats the output..?
>> >
>> > --
>> > You received this message because you are subscribed to the Google
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>> >
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Re: [algogeeks] Re: size of self referential structure
Its Cos that is pointer and all pointers is 4 bytes address..
On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam wrote:
> @everyone:
> I have this mind strangling doubt..!!!
>
> Why is "char *s[5]" of 20 bytes...?
>
> yes the output is 28...
>
> On 7/26/11, Don wrote:
> > A reasonable guess would be 28 bytes. But the size of a structure is
> > implementation dependent, and therefore, some other result could be
> > correct as well.
> > Don
> >
> > On Jul 26, 7:40 am, Puneet Gautam wrote:
> >> #include
> >> #include
> >> struct node{
> >>int a;
> >>char *b[5];
> >>struct node *link;
> >>};
> >> main()
> >> {
> >> int a;
> >> a=sizeof(struct node);
> >> printf("%d",a);
> >> getchar();
> >> return 0;
> >> }
> >>
> >> Whats the output..?
> >
> > --
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> >
> >
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Re: [algogeeks] Re: size of self referential structure
ok...!
#include
#include
struct node{
int a;
char b[5];
struct node *link;
};
main()
{
int a;
a=sizeof(struct node);
printf("%d",a);
getchar();
return 0;
}
why is its output : 16?
Sudnt it be 4(int a) +5(char b[5] string) +9(link)= 18..?
On 7/26/11, Akshata Sharma wrote:
> char *s[5] is an array of 5 char pointers. A pointer is an int, of size 4
> bytes. So, 5*4 = 20 bytes
>
> On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam
> wrote:
>
>> @everyone:
>> I have this mind strangling doubt..!!!
>>
>> Why is "char *s[5]" of 20 bytes...?
>>
>> yes the output is 28...
>>
>> On 7/26/11, Don wrote:
>> > A reasonable guess would be 28 bytes. But the size of a structure is
>> > implementation dependent, and therefore, some other result could be
>> > correct as well.
>> > Don
>> >
>> > On Jul 26, 7:40 am, Puneet Gautam wrote:
>> >> #include
>> >> #include
>> >> struct node{
>> >>int a;
>> >>char *b[5];
>> >>struct node *link;
>> >>};
>> >> main()
>> >> {
>> >> int a;
>> >> a=sizeof(struct node);
>> >> printf("%d",a);
>> >> getchar();
>> >> return 0;
>> >> }
>> >>
>> >> Whats the output..?
>> >
>> > --
>> > You received this message because you are subscribed to the Google
>> > Groups
>> > "Algorithm Geeks" group.
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>> >
>> >
>>
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Re: [algogeeks] Re: size of self referential structure
char *s[5] is a array of pointers of type char . but the thing is size of
pointers is 4byte irrespective of its type . coz address is always an
unsigned int which is of 4byte.
On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam wrote:
> @everyone:
> I have this mind strangling doubt..!!!
>
> Why is "char *s[5]" of 20 bytes...?
>
> yes the output is 28...
>
> On 7/26/11, Don wrote:
> > A reasonable guess would be 28 bytes. But the size of a structure is
> > implementation dependent, and therefore, some other result could be
> > correct as well.
> > Don
> >
> > On Jul 26, 7:40 am, Puneet Gautam wrote:
> >> #include
> >> #include
> >> struct node{
> >>int a;
> >>char *b[5];
> >>struct node *link;
> >>};
> >> main()
> >> {
> >> int a;
> >> a=sizeof(struct node);
> >> printf("%d",a);
> >> getchar();
> >> return 0;
> >> }
> >>
> >> Whats the output..?
> >
> > --
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> >
> >
>
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Re: [algogeeks] Re: size of self referential structure
char *s[5] is an array of 5 char pointers. A pointer is an int, of size 4
bytes. So, 5*4 = 20 bytes
On Tue, Jul 26, 2011 at 7:11 PM, Puneet Gautam wrote:
> @everyone:
> I have this mind strangling doubt..!!!
>
> Why is "char *s[5]" of 20 bytes...?
>
> yes the output is 28...
>
> On 7/26/11, Don wrote:
> > A reasonable guess would be 28 bytes. But the size of a structure is
> > implementation dependent, and therefore, some other result could be
> > correct as well.
> > Don
> >
> > On Jul 26, 7:40 am, Puneet Gautam wrote:
> >> #include
> >> #include
> >> struct node{
> >>int a;
> >>char *b[5];
> >>struct node *link;
> >>};
> >> main()
> >> {
> >> int a;
> >> a=sizeof(struct node);
> >> printf("%d",a);
> >> getchar();
> >> return 0;
> >> }
> >>
> >> Whats the output..?
> >
> > --
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> >
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Re: [algogeeks] Re: size of self referential structure
@everyone:
I have this mind strangling doubt..!!!
Why is "char *s[5]" of 20 bytes...?
yes the output is 28...
On 7/26/11, Don wrote:
> A reasonable guess would be 28 bytes. But the size of a structure is
> implementation dependent, and therefore, some other result could be
> correct as well.
> Don
>
> On Jul 26, 7:40 am, Puneet Gautam wrote:
>> #include
>> #include
>> struct node{
>> int a;
>> char *b[5];
>> struct node *link;
>> };
>> main()
>> {
>> int a;
>> a=sizeof(struct node);
>> printf("%d",a);
>> getchar();
>> return 0;
>> }
>>
>> Whats the output..?
>
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