Re: [algogeeks] C output

[Vikas Kumar]

#includestdio.h
int main()
{
   char str[]={'a','b','c'};
   char str1[]={abc};
  printf(%d,sizeof(str));
printf(%d,sizeof(str1));
getchar();
}

This is giving 3 in case of str and 4 in case of str1 bcz str is array of
character and str1 is a string.
For understanding this point consider a integer array int arr[] =
{1,2,3,4}; then for this sizeof(arr) is 16 means 4*sizeof(int). So in the
same way for str in given program it is giving 3*sizeof(char) i.e. 3.

sizeof(anyString) = lengthOfString +1 ( +1 for '\0')
strlen(anyString)  = simple length
sizeof(anyArray) = numberofElementPresentInArray*sizeof(dataType)


-- 
*Thanks,*
*Vikas Kumar*
*
*

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Re: [algogeeks] C output

[Sachin]

@rahul According to C specification, half filled array will be filled with 
value 0. In your example you are setting str[0] as 'g' and str[1] as 'k'. 
So the compiler sets str[29] as 0. So you string str becomes
{'g', 'k', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'}

Confusion is arising from the fact that you have created an array of 10 
elements.

To answer you original question gk is inherently {'g', 'k', '\0'} and has 
size 3 while {'g', 'k'} has size 2.

Regards,
Sachin

On Saturday, October 6, 2012 9:34:30 PM UTC+5:30, rahul sharma wrote:

 #includestdio.h


 int main()
 {
 char str[10]={'g','k'};
 char str1[10]=gh;
 int i;
 for(i=0;str1[i]!=NULL;i++)
 printf(%c,str[i]);
 getchar();
 }

 NUll is there in character array also...make clear me...

 On Sat, Oct 6, 2012 at 9:22 PM, rahul sharma rahul2...@gmail.comjavascript:
  wrote:

 int main()
 {
 char str[10]={'g','k'};
 char str1[10]=gh;


 printf(%s,str);
 printf(%s,str1);
 getchar();
 }
 then how does this work???
 str printing gk...then NULL is automatically appended in this also...plz 
 tell


 On Sat, Oct 6, 2012 at 6:33 PM, Rathish Kannan 
 rathis...@gmail.comjavascript:
  wrote:

 For string, C appends '\0' internally. hence sizeof(str) returned the 
 value 3.
 str1 is char array with two character. hence sizeof(str1) returned the 
 value 2.

 --  RK :)


 On Sat, Oct 6, 2012 at 5:53 PM, rahul sharma 
 rahul2...@gmail.comjavascript:
  wrote:

 char str[]=ab; 
 char str1[]={'a','b'};

 sizeof(str) ...o/p is 3
 sizeof(str1)o/p is 2..

 Why so
 plz explain...
  
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Re: [algogeeks] C output

[rahul sharma]

@sachin..thnx for explanation..got it..plz tell

#includestdio.h


int main()
{
   char str[]={'a','b','c'};
   char str1[]={abc};
  printf(%d,sizeof(str));
printf(%d,sizeof(str1));
getchar();
}



why str has size 3 and str1 has 4...NUll should also come after c of
str???then y 3??

On Mon, Oct 8, 2012 at 5:07 PM, Sachin sachin.maheshw...@gmail.com wrote:

 @rahul According to C specification, half filled array will be filled with
 value 0. In your example you are setting str[0] as 'g' and str[1] as 'k'.
 So the compiler sets str[29] as 0. So you string str becomes
 {'g', 'k', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'}

 Confusion is arising from the fact that you have created an array of 10
 elements.

 To answer you original question gk is inherently {'g', 'k', '\0'} and
 has size 3 while {'g', 'k'} has size 2.

 Regards,
 Sachin


 On Saturday, October 6, 2012 9:34:30 PM UTC+5:30, rahul sharma wrote:

 #includestdio.h


 int main()
 {
 char str[10]={'g','k'};
 char str1[10]=gh;
 int i;
 for(i=0;str1[i]!=NULL;i++)
 printf(%c,str[i]);
 getchar();
 }

 NUll is there in character array also...make clear me...

 On Sat, Oct 6, 2012 at 9:22 PM, rahul sharma rahul2...@gmail.com wrote:

 int main()
 {
 char str[10]={'g','k'};
 char str1[10]=gh;


 printf(%s,str);
 printf(%s,str1);
 getchar();
 }
 then how does this work???
 str printing gk...then NULL is automatically appended in this also...plz
 tell


 On Sat, Oct 6, 2012 at 6:33 PM, Rathish Kannan rathis...@gmail.comwrote:

 For string, C appends '\0' internally. hence sizeof(str) returned the
 value 3.
 str1 is char array with two character. hence sizeof(str1) returned the
 value 2.

 --  RK :)


 On Sat, Oct 6, 2012 at 5:53 PM, rahul sharma rahul2...@gmail.comwrote:

 char str[]=ab;
 char str1[]={'a','b'};

 sizeof(str) ...o/p is 3
 sizeof(str1)o/p is 2..

 Why so
 plz explain...

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[algogeeks] C output

[rahul sharma]

char str[]=ab;
char str1[]={'a','b'};

sizeof(str) ...o/p is 3
sizeof(str1)o/p is 2..

Why so
plz explain...

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Re: [algogeeks] C output

[Jaspreet Singh]

because of null char in 1st

On Sat, Oct 6, 2012 at 5:53 PM, rahul sharma rahul23111...@gmail.comwrote:

 char str[]=ab;
 char str1[]={'a','b'};

 sizeof(str) ...o/p is 3
 sizeof(str1)o/p is 2..

 Why so
 plz explain...--
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Re: [algogeeks] C output

[Rathish Kannan]

For string, C appends '\0' internally. hence sizeof(str) returned the value
3.
str1 is char array with two character. hence sizeof(str1) returned the
value 2.

--  RK :)


On Sat, Oct 6, 2012 at 5:53 PM, rahul sharma rahul23111...@gmail.comwrote:

 char str[]=ab;
 char str1[]={'a','b'};

 sizeof(str) ...o/p is 3
 sizeof(str1)o/p is 2..

 Why so
 plz explain...

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Re: [algogeeks] C output

[rahul sharma]

int main()
{
char str[10]={'g','k'};
char str1[10]=gh;


printf(%s,str);
printf(%s,str1);
getchar();
}
then how does this work???
str printing gk...then NULL is automatically appended in this also...plz
tell


On Sat, Oct 6, 2012 at 6:33 PM, Rathish Kannan rathishkan...@gmail.comwrote:

 For string, C appends '\0' internally. hence sizeof(str) returned the
 value 3.
 str1 is char array with two character. hence sizeof(str1) returned the
 value 2.

 --  RK :)


 On Sat, Oct 6, 2012 at 5:53 PM, rahul sharma rahul23111...@gmail.comwrote:

 char str[]=ab;
 char str1[]={'a','b'};

 sizeof(str) ...o/p is 3
 sizeof(str1)o/p is 2..

 Why so
 plz explain...

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Re: [algogeeks] C output

[rahul sharma]

#includestdio.h


int main()
{
char str[10]={'g','k'};
char str1[10]=gh;
int i;
for(i=0;str1[i]!=NULL;i++)
printf(%c,str[i]);
getchar();
}

NUll is there in character array also...make clear me...

On Sat, Oct 6, 2012 at 9:22 PM, rahul sharma rahul23111...@gmail.comwrote:

 int main()
 {
 char str[10]={'g','k'};
 char str1[10]=gh;


 printf(%s,str);
 printf(%s,str1);
 getchar();
 }
 then how does this work???
 str printing gk...then NULL is automatically appended in this also...plz
 tell


 On Sat, Oct 6, 2012 at 6:33 PM, Rathish Kannan rathishkan...@gmail.comwrote:

 For string, C appends '\0' internally. hence sizeof(str) returned the
 value 3.
 str1 is char array with two character. hence sizeof(str1) returned the
 value 2.

 --  RK :)


 On Sat, Oct 6, 2012 at 5:53 PM, rahul sharma rahul23111...@gmail.comwrote:

 char str[]=ab;
 char str1[]={'a','b'};

 sizeof(str) ...o/p is 3
 sizeof(str1)o/p is 2..

 Why so
 plz explain...

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Re: [algogeeks] C output

[atul anand]

violation of sequence point ruleoutput depends on compiler to compiler.

On Tue, Jul 3, 2012 at 1:22 PM, rahul sharma rahul23111...@gmail.comwrote:

 #includestdio.h
 #includeconio.h
 int main()
 {
 int i;
 i=5;
 i=++i/i++;
 printf(%d,i);
 getch();
 }

 Why o/p is 1 and not 2??   what happened for post increment???

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[algogeeks] c output

[dabbcomputers]

#includestdio.h
int main()
{
double p=fabs(24.9996);
double t=fabs(25.0003);
printf(%0.3lf %0.3lf\n,p,t);
if(fabs(p)==fabs(t))
printf(equal);// why this not executed?
}


why the equal not printed in this code...?

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Re: [algogeeks] c output

[atul anand]

printf(%0.3lf %0.3lf\n,p,t);

its just printing at your convenience . you are not changing the value of
p,t .
change this statement to
printf(%0.5lf %0.5lf\n,p,t);



On Tue, Jan 17, 2012 at 11:27 AM, dabbcomputers dabbcomput...@gmail.comwrote:

 #includestdio.h
 int main()
 {
double p=fabs(24.9996);
double t=fabs(25.0003);
printf(%0.3lf %0.3lf\n,p,t);
if(fabs(p)==fabs(t))
printf(equal);// why this not executed?
 }


 why the equal not printed in this code...?

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Re: [algogeeks] c output

[shady]

atul he is assigning the value later on.
i think format specifier . rounds up the number in last decimal place.

On Tue, Jan 17, 2012 at 11:53 AM, atul anand atul.87fri...@gmail.comwrote:

 printf(%0.3lf %0.3lf\n,p,t);

 its just printing at your convenience . you are not changing the value of
 p,t .
 change this statement to
 printf(%0.5lf %0.5lf\n,p,t);




 On Tue, Jan 17, 2012 at 11:27 AM, dabbcomputers 
 dabbcomput...@gmail.comwrote:

 #includestdio.h
 int main()
 {
double p=fabs(24.9996);
double t=fabs(25.0003);
printf(%0.3lf %0.3lf\n,p,t);
if(fabs(p)==fabs(t))
printf(equal);// why this not executed?
 }


 why the equal not printed in this code...?

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Re: [algogeeks] c output

[Rujin Cao]

It's not a good way to compare two floats directly using =, try something
like below:

http://ideone.com/c65Vl

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Re: [algogeeks] c output

[payal gupta]

i gues atul is crkt.
its jst printin by user convenience...when actually d two are not equal...

i guess the code...xplains well...dats y equal  is not printed..out


#includestdio.hint main(){
   double p=fabs(24.9996);
   printf(%lf\n,p);
   double t=fabs(25.0003);
   printf(%lf\n,t);
   printf(%0.3lf %0.3lf\n,p,t);
   printf(%lf\n%lf\n,fabs(p),fabs(t));
   if(fabs(p)==fabs(t))
   printf(equal);// why this not executed?}


crkt me if i'm wrong..
Regards,
PAYAL GUPTA,
NIT-BHOPAL..
On Tue, Jan 17, 2012 at 12:13 PM, shady sinv...@gmail.com wrote:

 atul he is assigning the value later on.
 i think format specifier . rounds up the number in last decimal place.


 On Tue, Jan 17, 2012 at 11:53 AM, atul anand atul.87fri...@gmail.comwrote:

 printf(%0.3lf %0.3lf\n,p,t);

 its just printing at your convenience . you are not changing the value of
 p,t .
 change this statement to
 printf(%0.5lf %0.5lf\n,p,t);




 On Tue, Jan 17, 2012 at 11:27 AM, dabbcomputers 
 dabbcomput...@gmail.comwrote:

 #includestdio.h
 int main()
 {
double p=fabs(24.9996);
double t=fabs(25.0003);
printf(%0.3lf %0.3lf\n,p,t);
if(fabs(p)==fabs(t))
printf(equal);// why this not executed?
 }


 why the equal not printed in this code...?

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Re: [algogeeks] c output ??

[Rahul Verma]

@amol this is not the behaviour of printf, its totally about the typecasting

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Re: [algogeeks] c output ??

[saurabh singh]

It's painful to see printf being accused for the (un) expected
output..The declaration of printf means that any data type can be
passed to it as argument.Inherently what printf does is print the bytes in
meaningful form according to the first argument which is a string.So its
impossible for printf to typecast arguments once they are passed they
appear the same way to printf...*A stream of bits from which it has to
extract the valid info.*Its the responsibility of the programmer to pass
the right data type with right format specifier...Just to complete my
answer http://www.ideone.com/CNkCo .
Saurabh Singh
B.Tech (Computer Science)
MNNIT
blog:geekinessthecoolway.blogspot.com



On Tue, Jan 10, 2012 at 2:29 PM, Rahul Verma rahulverma@gmail.comwrote:

 @amol this is not the behaviour of printf, its totally about the
 typecasting

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Re: [algogeeks] c output ??

[Amol Sharma]

According to KR the behavior of printf is undefined if u do not use
correct format specifiers for the variables.
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On Mon, Jan 9, 2012 at 11:01 AM, atul anand atul.87fri...@gmail.com wrote:

 take care when ever you use %d and %f

 %d is not flexible in handling float varibaledo not expect it to
 typecast itself.
 reason could be , you are trying to fit large data type i.e float to  the
 int whose range is less.

 whereas in second case float can incorporate int type , so automatic
 typecasting is done.


 On Mon, Jan 9, 2012 at 10:17 AM, HARSHIT PAHUJA 
 hpahuja.mn...@gmail.comwrote:

 *#includestdio.h
 int main()
 {
 float f=25.25;
 printf(%d\n,f);
 long int x=90;
 printf(%f,x);
 return 0;
 }
 *

 above program gives output
 *0
 25.25*

 shudn it be :
 *25
 90.*
  ??

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Re: [algogeeks] c output ??

[Kartik Sachan]

@amol I think  it is not the behaviour of printf

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[algogeeks] c output ??

[HARSHIT PAHUJA]

*#includestdio.h
int main()
{
float f=25.25;
printf(%d\n,f);
long int x=90;
printf(%f,x);
return 0;
}
*

above program gives output
*0
25.25*

shudn it be :
*25
90.*
 ??

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Re: [algogeeks] c output ??

[atul anand]

take care when ever you use %d and %f

%d is not flexible in handling float varibaledo not expect it to
typecast itself.
reason could be , you are trying to fit large data type i.e float to  the
int whose range is less.

whereas in second case float can incorporate int type , so automatic
typecasting is done.

On Mon, Jan 9, 2012 at 10:17 AM, HARSHIT PAHUJA hpahuja.mn...@gmail.comwrote:

 *#includestdio.h
 int main()
 {
 float f=25.25;
 printf(%d\n,f);
 long int x=90;
 printf(%f,x);
 return 0;
 }
 *

 above program gives output
 *0
 25.25*

 shudn it be :
 *25
 90.*
  ??

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Re: [algogeeks] C output????

[sravanreddy001]

@arun:  http://mindprod.com/jgloss/immutable.html
this might help you, in essense, if a compiler treats them as immutable, 
the reason is to reduce the overhead of creating another contant literal 
(as explain at the link, the string literals are the most commonly used)

this is from a java (or higher than C languages) just got to know that this 
is in C too...

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Re: [algogeeks] C output????

[teja bala]

depends on compiler i think..but most probably it compares the
addresses.

On Wed, Jan 4, 2012 at 12:20 PM, saurabh singh saurab...@gmail.com wrote:

 @all.Your explanations work because probably all of you are using a
 compiler that's behaving in the same way.Don't conclude from what you
 see...The compiler is free to store the constant strings the way it
 wants.
 Saurabh Singh
 B.Tech (Computer Science)
 MNNIT
 blog:geekinessthecoolway.blogspot.com



 On Wed, Jan 4, 2012 at 12:13 PM, Rahul raikra...@gmail.com wrote:

 it's near to a common mis conception that string liberals are in data
 sections of THE PROGRAM


 PLEASE READ THE FILE
 a.out.h

 and find the difference between initialized data and non initialized data

 On 9/6/11, Sandy sandy.wad...@gmail.com wrote:
  String constants (literals) are saved into the .data section of the
 program,
   Here is the sample program to show that.  if() is essentially
 comparing the
  addresses of two pointers which is same.
 
  int main()
  {
  char *p=persons;
  char *q=persons;
  char *r=persons;
  char *s=persons;
   printf(%x %x %x %x\n,p,q,r,s);
  if(p==persons)
  printf(technical %s,p);
  else
  printf(true %s,p);
  return 0;
  }
  -
  Output:
  403021 403021 403021 403021
  technical persons
 
  On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.com
 wrote:
 
 
  main()
  {
  char *p=persons;
  clrscr();
  if(p==persons)
  printf(technical %s,p);
  else
  printf(true %s,p);
  return 0;
  }
 
  ..op : technical persons ..plz explain .. how come it works like an
 strcmp
  operation???
  --
  Regards,
  $iva
 
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Re: [algogeeks] C output????

[Arun Vishwanathan]

actually is there any reason as to why same address is returned to the
pointer when both pointers(p and q) are initialised to persons unlike
when p[] and q[] =persons?

On Tue, Sep 6, 2011 at 9:08 AM, Sandy sandy.wad...@gmail.com wrote:

 String constants (literals) are saved into the .data section of the
 program,  Here is the sample program to show that.  if() is essentially
 comparing the addresses of two pointers which is same.

 int main()
 {
 char *p=persons;
 char *q=persons;
  char *r=persons;
 char *s=persons;
  printf(%x %x %x %x\n,p,q,r,s);
 if(p==persons)
 printf(technical %s,p);
  else
 printf(true %s,p);
 return 0;
 }
 -
 Output:
 403021 403021 403021 403021
 technical persons

 On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an
 strcmp operation???
 --
 Regards,
 $iva

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Re: [algogeeks] C output????

[Rahul]

it's near to a common mis conception that string liberals are in data
sections of THE PROGRAM


PLEASE READ THE FILE
a.out.h

and find the difference between initialized data and non initialized data

On 9/6/11, Sandy sandy.wad...@gmail.com wrote:
 String constants (literals) are saved into the .data section of the program,
  Here is the sample program to show that.  if() is essentially comparing the
 addresses of two pointers which is same.

 int main()
 {
 char *p=persons;
 char *q=persons;
 char *r=persons;
 char *s=persons;
  printf(%x %x %x %x\n,p,q,r,s);
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }
 -
 Output:
 403021 403021 403021 403021
 technical persons

 On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an strcmp
 operation???
 --
 Regards,
 $iva

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Re: [algogeeks] C output????

[saurabh singh]

@all.Your explanations work because probably all of you are using a
compiler that's behaving in the same way.Don't conclude from what you
see...The compiler is free to store the constant strings the way it
wants.
Saurabh Singh
B.Tech (Computer Science)
MNNIT
blog:geekinessthecoolway.blogspot.com



On Wed, Jan 4, 2012 at 12:13 PM, Rahul raikra...@gmail.com wrote:

 it's near to a common mis conception that string liberals are in data
 sections of THE PROGRAM


 PLEASE READ THE FILE
 a.out.h

 and find the difference between initialized data and non initialized data

 On 9/6/11, Sandy sandy.wad...@gmail.com wrote:
  String constants (literals) are saved into the .data section of the
 program,
   Here is the sample program to show that.  if() is essentially comparing
 the
  addresses of two pointers which is same.
 
  int main()
  {
  char *p=persons;
  char *q=persons;
  char *r=persons;
  char *s=persons;
   printf(%x %x %x %x\n,p,q,r,s);
  if(p==persons)
  printf(technical %s,p);
  else
  printf(true %s,p);
  return 0;
  }
  -
  Output:
  403021 403021 403021 403021
  technical persons
 
  On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.com
 wrote:
 
 
  main()
  {
  char *p=persons;
  clrscr();
  if(p==persons)
  printf(technical %s,p);
  else
  printf(true %s,p);
  return 0;
  }
 
  ..op : technical persons ..plz explain .. how come it works like an
 strcmp
  operation???
  --
  Regards,
  $iva
 
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Re: [algogeeks] c output

[rahul sharma]

does y goes to d of %*d and it print 5???i hav a doubt

On Fri, Oct 28, 2011 at 9:32 PM, amrit harry dabbcomput...@gmail.comwrote:

 let this statement int x=100,y=5;printf(%*d,x,y);
 in this line first x is assign to '*' and it become %100d
 and it will padd 100 spaces before print. and if we use( %*d,x)
 then x is assign to '*' and garbage value wud be printed.


 On Fri, Oct 28, 2011 at 8:53 PM, annarao kataru 
 kataruanna...@gmail.comwrote:

 can u plz tell me what exactly %*d  means?

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Re: [algogeeks] c output

[Anika Jain]

yes 5 will be printed with 99 extra padding spaces.

On Sat, Oct 29, 2011 at 4:16 PM, rahul sharma rahul23111...@gmail.comwrote:

 does y goes to d of %*d and it print 5???i hav a doubt


 On Fri, Oct 28, 2011 at 9:32 PM, amrit harry dabbcomput...@gmail.comwrote:

 let this statement int x=100,y=5;printf(%*d,x,y);
 in this line first x is assign to '*' and it become %100d
 and it will padd 100 spaces before print. and if we use( %*d,x)
 then x is assign to '*' and garbage value wud be printed.


 On Fri, Oct 28, 2011 at 8:53 PM, annarao kataru 
 kataruanna...@gmail.comwrote:

 can u plz tell me what exactly %*d  means?

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Re: [algogeeks] c output

[annarao kataru]

can u plz tell me what exactly %*d  means?

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Re: [algogeeks] c output

[amrit harry]

let this statement int x=100,y=5;printf(%*d,x,y);
in this line first x is assign to '*' and it become %100d
and it will padd 100 spaces before print. and if we use( %*d,x)
then x is assign to '*' and garbage value wud be printed.

On Fri, Oct 28, 2011 at 8:53 PM, annarao kataru kataruanna...@gmail.comwrote:

 can u plz tell me what exactly %*d  means?

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[algogeeks] c output

[Raghav Garg]

*explain the o/p...if i/p are 100 200 300
int main()
  {
   int a=1,b=2,c=3;
   scanf(%d %*d %d,a,b,c);
   printf(%d %d %d,a,b,c);
   return(0);
  }
*Thanking you

*With regards-
Raghav garg
Contact no. 9013201944
www.facebook.com/rock.raghavag
B. tech (IT), 5th sem
University School Of Information Technology
Guru Govind Singh Indraprastha University
Delhi*

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Re: [algogeeks] c output

[shiva@Algo]

as expected value 100 goes to a,since %*d is variable field width specifier
 so the input 200 goes for that,and the remaining input 300 goes to b
value of c is not change
so the output will be:
100 300 3

On Sun, Oct 9, 2011 at 12:22 AM, Raghav Garg rock.ragha...@gmail.comwrote:

 *explain the o/p...if i/p are 100 200 300
 int main()
   {
int a=1,b=2,c=3;
scanf(%d %*d %d,a,b,c);
printf(%d %d %d,a,b,c);
return(0);
   }
 *Thanking you

 *With regards-
 Raghav garg
 Contact no. 9013201944
 www.facebook.com/rock.raghavag
 B. tech (IT), 5th sem
 University School Of Information Technology
 Guru Govind Singh Indraprastha University
 Delhi*

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Re: [algogeeks] c output

[shiva@Algo]

This is what you use if you want *scanf()* to eat some data but you don't
want to store it anywhere; you don't give *scanf()* an argument for this
conversion

On Sun, Oct 9, 2011 at 1:32 AM, shiva@Algo shiv.jays...@gmail.com wrote:

 as expected value 100 goes to a,since %*d is variable field width specifier
  so the input 200 goes for that,and the remaining input 300 goes to b
 value of c is not change
 so the output will be:
 100 300 3


 On Sun, Oct 9, 2011 at 12:22 AM, Raghav Garg rock.ragha...@gmail.comwrote:

 *explain the o/p...if i/p are 100 200 300
 int main()
   {
int a=1,b=2,c=3;
scanf(%d %*d %d,a,b,c);
printf(%d %d %d,a,b,c);
return(0);
   }
 *Thanking you

 *With regards-
 Raghav garg
 Contact no. 9013201944
 www.facebook.com/rock.raghavag
 B. tech (IT), 5th sem
 University School Of Information Technology
 Guru Govind Singh Indraprastha University
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Re: [algogeeks] C OUTPUT

[Pradip Singh]

number will be sored in 2'scomplement form .as 4=100 so its 1's comlement
form will be 011 and adding  1 to it will result in 011+1=100.so -4 will be
printed

On Wed, Sep 21, 2011 at 10:23 AM, kartik sachan kartik.sac...@gmail.comwrote:

 @ravi i think ur concepts is correct the no is stored in 2's formif
 negative

 thanks ravi

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[algogeeks] C OUTPUT

[kartik sachan]

int main(){
struct {
int a:1;
int b:3;
}obj;
obj.b=12;
obj.a=7;
printf 
http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(%d
%d,obj.b,obj.a);return 0;}



can anybody explain the output
plzz also show how no's are stored


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*
*
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Re: [algogeeks] C OUTPUT

[ravi maggon]

output is -4 -1
int a:1 signifies that only 1 bit will be stored for a and since we have
only 1 bit so it will serve as sign bit and we get obj.a as -1
similarly for int b:3, 3 bits will be used to store b. 12 is 1100. we save
only 3 bits i.e. 100 where msb signifies the sign i.e. no. is negative. But
I am not able to represent the value -4 in 3 bits. Can anyone elaborate?
I think 00 is getting converted to 2's complement which is 100 = 4 and we
have negative sign bit set. So ans is -4. Correct me if I am wrong.

On Wed, Sep 21, 2011 at 10:22 PM, kartik sachan kartik.sac...@gmail.comwrote:


 int main(){
 struct {
 int a:1;
 int b:3;
 }obj;
 obj.b=12;
 obj.a=7;
 printf 
 http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(%d 
 %d,obj.b,obj.a);return 0;}



 can anybody explain the output
 plzz also show how no's are stored


 --

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 *
 *
 *KARTIK SACHAN*

 *B.TECH 3rd YEAR*
 *COMPUTER SCIENCE AND ENGINEERING*
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Re: [algogeeks] C OUTPUT

[kartik sachan]

@ravi i think ur concepts is correct the no is stored in 2's formif
negative

thanks ravi

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Re: [algogeeks] c output

[Siddhartha Banerjee]

on running,every time i get  second a=30... any reasons for that???

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Re: [algogeeks] c output

[sukran dhawan]

common guys its undefined acc to standard c 

On Mon, Sep 19, 2011 at 12:36 PM, Siddhartha Banerjee 
thefourrup...@gmail.com wrote:

 on running,every time i get  second a=30... any reasons for that???

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[algogeeks] c output

[hurtlocker]

#includestdio.h

main()

{

int a ;

a=abc();

printf(\n %d this is fisrt a:,a);

a=abc();

printf(\n %d this is second a:,a);

}
int abc()

{

int i=23;

if(10)

return ;

i++;

return(++ i);

}

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[algogeeks] c output

[Bhavesh agrawal]

#includestdio.h

main()

{

int a ;

a=abc();

printf(\n %d this is fisrt a:,a);

a=abc();

printf(\n %d this is second a:,a);

}
int abc()

{

int i=23;

if(10)

return ;

i++;

return(++ i);

}

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Re: [algogeeks] c output

[sukran dhawan]

result is not defined by standard c. It doesnt produce compiler error just
because return type is int and no value is returned in if(10)
basically garbage

On Sun, Sep 18, 2011 at 12:23 PM, Bhavesh agrawal agr.bhav...@gmail.comwrote:

 #includestdio.h

 main()

 {

 int a ;

 a=abc();

 printf(\n %d this is fisrt a:,a);

 a=abc();

 printf(\n %d this is second a:,a);

 }
 int abc()

 {

 int i=23;

 if(10)

 return ;

 i++;

 return(++ i);

 }

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Re: [algogeeks] c output

[Amol Sharma]

it is just printing some garbage value as u have specified return but not
the value.try putting some value with return then you'll understand
what's happening..
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On Sun, Sep 18, 2011 at 12:38 PM, sukran dhawan sukrandha...@gmail.comwrote:

 result is not defined by standard c. It doesnt produce compiler error just
 because return type is int and no value is returned in if(10)

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Re: [algogeeks] c output

[kartik sachan]

@what's special in this ...
it is giving 0 in both cases.
basically a garbage value

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Re: [algogeeks] c output

[Bhavesh agrawal]

result is this

 -1075990972 this is fisrt a:
 30 this is second a

what is the meaning of a=30 in second call

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Re: [algogeeks] c output

[Anup Ghatage]

Error.
the 10 condition does not return anything, while the function should return
an int.

On Sun, Sep 18, 2011 at 6:39 AM, hurtlocker bhavesh24...@rediffmail.comwrote:

 #includestdio.h

 main()

 {

 int a ;

 a=abc();

 printf(\n %d this is fisrt a:,a);

 a=abc();

 printf(\n %d this is second a:,a);

 }
 int abc()

 {

 int i=23;

 if(10)

 return ;

 i++;

 return(++ i);

 }

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Re: [algogeeks] c output

[Saravana kumar]

0 this is fisrt a:
0 this is second a:

On Sun, Sep 18, 2011 at 12:09 PM, hurtlocker bhavesh24...@rediffmail.comwrote:

 #includestdio.h

 main()

 {

 int a ;

 a=abc();

 printf(\n %d this is fisrt a:,a);

 a=abc();

 printf(\n %d this is second a:,a);

 }
 int abc()

 {

 int i=23;

 if(10)

 return ;

 i++;

 return(++ i);

 }

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Re: [algogeeks] c output

[Bhavesh agrawal]

another que..

#includestdio.h
main()
{
int a;
int i=10;
printf(%d %d %d\n,i+++i,i,i---i);
printf(%d\n,i---i);
a=i---i;
printf(%d \n%d,a,i);
return 0;
}

output:

18 10 0
0
0
8

how ??

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Re: [algogeeks] c output

[sukran dhawan]

again undefined in standard c :)

On Sun, Sep 18, 2011 at 1:49 PM, Bhavesh agrawal agr.bhav...@gmail.comwrote:

 another que..


 #includestdio.h
 main()
 {
 int a;
 int i=10;
 printf(%d %d %d\n,i+++i,i,i---i);
 printf(%d\n,i---i);
 a=i---i;
 printf(%d \n%d,a,i);
 return 0;
 }

 output:

 18 10 0
 0
 0
 8

 how ??

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[algogeeks] c output，printf(%llx)

[wujin chen]

usigned long long x = 0x12345678;
int a = 0x09;
int b = 0x10;
printf(a=%x, b=%llx,a,b,c);

the result is: a=9,b=123456780010

i wonder why~~

can anyone explain it?
thanks.

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Re: [algogeeks] c output，printf(%llx)

[sagar pareek]

Check out what u have written...


On Sun, Sep 18, 2011 at 7:17 PM, wujin chen wujinchen...@gmail.com wrote:

 usigned long long x = 0x12345678;
 int a = 0x09;
 int b = 0x10;
 printf(a=%x, b=%llx,a,b,c);

 the result is: a=9,b=123456780010

 i wonder why~~

 can anyone explain it?
 thanks.

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Re: [algogeeks] c output，printf(%llx)

[wujin chen]

sorry , it should be :

usigned long long c = 0x12345678;
int a = 0x09;
int b = 0x10;
printf(a=%x, b=%llx,a,b,c);


2011/9/19 sagar pareek sagarpar...@gmail.com

 Check out what u have written...


 On Sun, Sep 18, 2011 at 7:17 PM, wujin chen wujinchen...@gmail.comwrote:

 usigned long long x = 0x12345678;
 int a = 0x09;
 int b = 0x10;
 printf(a=%x, b=%llx,a,b,c);

 the result is: a=9,b=123456780010

 i wonder why~~

 can anyone explain it?
 thanks.

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Re: [algogeeks] C output

[tech coder]

+1

On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[tech coder]

for 16 bit compiler ans is 2  3
for 32 bit compiler ans is 4 3

pls correct me if i m wrong

On Wed, Sep 14, 2011 at 11:36 AM, tech coder techcoderonw...@gmail.comwrote:

 +1

 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[Rohit Upadhyaya]

for a 32 bit it is 4 ,3 and for 16 bit it is 2,3 and 64 bit it is 8,3..
also strlen(d) gives 3 bcz the coding of fn strlen() is such that as it
encounters null it will terminate..so irrespective of machine it prints 3 as
null at 4th place

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Re: [algogeeks] C output

[PRATEEK VERMA]

9 and 3

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Re: [algogeeks] C output

[tech coder]

@ prateek absolutely wrong , dear u need to brushup ur basics d is a pointer
,
it's can be 2 or 4 depebding on compiler

On Wed, Sep 14, 2011 at 6:26 AM, PRATEEK VERMA prateek...@gmail.com wrote:

 9 and 3

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[algogeeks] C output????

[sivaviknesh s]

main()
{
char *p=persons;
clrscr();
if(p==persons)
printf(technical %s,p);
else
printf(true %s,p);
return 0;
}

..op : technical persons ..plz explain .. how come it works like an strcmp
operation???
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Re: [algogeeks] C output????

[Shravan Kumar]

String literals are saved into a separate table in compiler. So second time
when you define persons it wont be created or allocated memory as it
already exists in table.

On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an strcmp
 operation???
 --
 Regards,
 $iva

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Re: [algogeeks] C output????

[aditi garg]

It is basically comparing the addresses  of the two and since p contains the
memory address of persons it gives the output as technical persons...
infact ull be surprised to see dis

#includestdio.h
main(){char p[]=persons;char q[]=persons;if(p==q)printf
http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(technical
%s,p);elseprintf
http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(true
%s,p);return 0;}

output : true persons


#includestdio.h
main(){char *p=persons;char *q=persons;if(p==q)printf
http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(technical
%s,p);elseprintf
http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(true
%s,p);return 0;

}
bt Here output will be Technical persons
On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an strcmp
 operation???
 --
 Regards,
 $iva

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NETAJI SUBHAS INSTITUTE OF TECHNOLOGY
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Re: [algogeeks] C output????

[Dheeraj Sharma]

in case of constant strings..they all return the same pointer..where they
are defined..
but in case of non constant strings..like a[]=sumthing and
b[]=sumthing...they will have separate memory allocations..

On Tue, Sep 6, 2011 at 9:12 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 It is basically comparing the addresses  of the two and since p contains
 the memory address of persons it gives the output as technical persons...
 infact ull be surprised to see dis

 #includestdio.h
 main(){char p[]=persons;char q[]=persons;if(p==q)
 printf 
 http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(technical
  %s,p);elseprintf 
 http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(true 
 %s,p);return 0;}

 output : true persons


 #includestdio.h
 main(){char *p=persons;char *q=persons;if(p==q)
 printf 
 http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(technical
  %s,p);elseprintf 
 http://www.opengroup.org/onlinepubs/009695399/functions/printf.html(true 
 %s,p);return 0;

 }
 bt Here output will be Technical persons
 On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an strcmp
 operation???
 --
 Regards,
 $iva

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 --
 Aditi Garg
 Undergraduate Student
 Electronics  Communication Divison
 NETAJI SUBHAS INSTITUTE OF TECHNOLOGY
 Sector 3, Dwarka
 New Delhi


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Re: [algogeeks] C output????

[sukran dhawan]

addresses are compared here  i think

On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an strcmp
 operation???
 --
 Regards,
 $iva

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Re: [algogeeks] C output????

[Sandy]

String constants (literals) are saved into the .data section of the program,
 Here is the sample program to show that.  if() is essentially comparing the
addresses of two pointers which is same.

int main()
{
char *p=persons;
char *q=persons;
char *r=persons;
char *s=persons;
 printf(%x %x %x %x\n,p,q,r,s);
if(p==persons)
printf(technical %s,p);
else
printf(true %s,p);
return 0;
}
-
Output:
403021 403021 403021 403021
technical persons

On Tue, Sep 6, 2011 at 9:04 PM, sivaviknesh s sivavikne...@gmail.comwrote:


 main()
 {
 char *p=persons;
 clrscr();
 if(p==persons)
 printf(technical %s,p);
 else
 printf(true %s,p);
 return 0;
 }

 ..op : technical persons ..plz explain .. how come it works like an strcmp
 operation???
 --
 Regards,
 $iva

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[algogeeks] c output .. help plz

[sivaviknesh s]

 printf(%d,3.14*6.25*6.25);

...ans : 0 ..how and why?? why not type conversion take place??

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Re: [algogeeks] c output .. help plz

[sukran dhawan]

it wil not truncate the floating point to integer remember...

On Tue, Sep 6, 2011 at 9:55 PM, sivaviknesh s sivavikne...@gmail.comwrote:

 printf(%d,3.14*6.25*6.25);

 ...ans : 0 ..how and why?? why not type conversion take place??

 --
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 $iva

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Re: [algogeeks] c output .. help plz

[sukran dhawan]

coz both floating point are stored in ieee format which is different from
integers

On Tue, Sep 6, 2011 at 10:18 PM, sukran dhawan sukrandha...@gmail.comwrote:

 it wil not truncate the floating point to integer remember...


 On Tue, Sep 6, 2011 at 9:55 PM, sivaviknesh s sivavikne...@gmail.comwrote:

 printf(%d,3.14*6.25*6.25);

 ...ans : 0 ..how and why?? why not type conversion take place??

 --
 Regards,
 $iva

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Re: [algogeeks] C output

[sukran dhawan]

9 and 3

On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[sukran dhawan]

sizeof considers everything between double quotes + /0 character
strlen reads until first \0

On Thu, Sep 1, 2011 at 5:49 PM, sukran dhawan sukrandha...@gmail.comwrote:

 9 and 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[Anil Arya]

output is machine dependent.

On 9/1/11, sukran dhawan sukrandha...@gmail.com wrote:
 sizeof considers everything between double quotes + /0 character
 strlen reads until first \0

 On Thu, Sep 1, 2011 at 5:49 PM, sukran dhawan sukrandha...@gmail.comwrote:

 9 and 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[SANDEEP CHUGH]

its 4 3   i think


On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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 --
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 Undergraduate Student
 Electronics  Communication Divison
 NETAJI SUBHAS INSTITUTE OF TECHNOLOGY
 Sector 3, Dwarka
 New Delhi


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Re: [algogeeks] C output

[sachin goyal]

2 3 because d is pointer avriable

On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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 --
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 Undergraduate Student
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 NETAJI SUBHAS INSTITUTE OF TECHNOLOGY
 Sector 3, Dwarka
 New Delhi


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Re: [algogeeks] C output

[SANDEEP CHUGH]

i said 4 3 according to 32 bit machine.. if its 16 bit thn it wud be 2 3

On Wed, Aug 31, 2011 at 9:30 PM, sachin goyal monugoya...@gmail.com wrote:

 2 3 because d is pointer avriable

 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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 Sector 3, Dwarka
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Re: [algogeeks] C output

[rahul vatsa]

sizeof(d) is the sz of pointer, so depending on arch it will be 4 or 8 ...


On Wed, Aug 31, 2011 at 11:57 AM, SANDEEP CHUGH sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[aditi garg]

sorry my mistake...
it wud be 4 3

On Wed, Aug 31, 2011 at 9:30 PM, sachin goyal monugoya...@gmail.com wrote:

 2 3 because d is pointer avriable

 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[Dheeraj Sharma]

8 3 is correct..winshuttle mein aaya tha ;)

On Wed, Aug 31, 2011 at 9:30 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 No sizeof ignores \0


 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[annarao kataru]

yes it must be 4 3

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Re: [algogeeks] C output

[aditi garg]

@dheeraj yea true,,,bt ut ws an array...its a pointer here...so output will
be 4  3...
infact it wud be 9 3 in the case u r considering

On Wed, Aug 31, 2011 at 9:32 PM, Dheeraj Sharma dheerajsharma1...@gmail.com
 wrote:

 8 3 is correct..winshuttle mein aaya tha ;)


 On Wed, Aug 31, 2011 at 9:30 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 No sizeof ignores \0


 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH 
 sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg 
 aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[SANDEEP CHUGH]

8 3 wud the answer if you use the following syntax

int main()
{
char d[] = abc\0def\0;
printf(%d %d,sizeof(d),strlen(d));
getch();
}


as you are using char *d

so sizeof will print only size of pointer variable


On Wed, Aug 31, 2011 at 9:32 PM, Dheeraj Sharma dheerajsharma1...@gmail.com
 wrote:

 8 3 is correct..winshuttle mein aaya tha ;)


 On Wed, Aug 31, 2011 at 9:30 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 No sizeof ignores \0


 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH 
 sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg 
 aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[SANDEEP CHUGH]

+1 aditi

On Wed, Aug 31, 2011 at 9:34 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 @dheeraj yea true,,,bt ut ws an array...its a pointer here...so output will
 be 4  3...
 infact it wud be 9 3 in the case u r considering


 On Wed, Aug 31, 2011 at 9:32 PM, Dheeraj Sharma 
 dheerajsharma1...@gmail.com wrote:

 8 3 is correct..winshuttle mein aaya tha ;)


 On Wed, Aug 31, 2011 at 9:30 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 No sizeof ignores \0


 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH 
 sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg 
 aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[Dheeraj Sharma]

for this
char *d = abc\ldef\l;

the output is 4 8 not 4 9 \l treated as one character


On Wed, Aug 31, 2011 at 9:34 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 @dheeraj yea true,,,bt ut ws an array...its a pointer here...so output will
 be 4  3...
 infact it wud be 9 3 in the case u r considering


 On Wed, Aug 31, 2011 at 9:32 PM, Dheeraj Sharma 
 dheerajsharma1...@gmail.com wrote:

 8 3 is correct..winshuttle mein aaya tha ;)


 On Wed, Aug 31, 2011 at 9:30 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 No sizeof ignores \0


 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH 
 sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg 
 aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[aditi garg]

8 3

On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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Re: [algogeeks] C output

[Swathi]

Depends on the 32-bit or 64-bit...
sizeof(d) - returns the 4 in case of 32-bit, 8 incase of 64-bit
strlen(d) - 3

On Wed, Aug 31, 2011 at 9:32 PM, Dheeraj Sharma dheerajsharma1...@gmail.com
 wrote:

 8 3 is correct..winshuttle mein aaya tha ;)


 On Wed, Aug 31, 2011 at 9:30 PM, aditi garg aditi.garg.6...@gmail.comwrote:

 No sizeof ignores \0


 On Wed, Aug 31, 2011 at 9:27 PM, SANDEEP CHUGH 
 sandeep.aa...@gmail.comwrote:

 its 4 3   i think


 On Wed, Aug 31, 2011 at 9:25 PM, aditi garg 
 aditi.garg.6...@gmail.comwrote:

 8 3


 On Wed, Aug 31, 2011 at 9:22 PM, rohit raman.u...@gmail.com wrote:

 output??

 int main()
 {
 char *d = abc\0def\0;
 printf(%d %d,sizeof(d),strlen(d));
 getch();
 }

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[algogeeks] C output

[rohit]

#includestdio.h

#define max(a,b) (ab?a:b)


int main()
{

 int j=max(3+2,2+8);
 printf(%d,j);

return 0;
}

why this program show output as 9 ? please help me

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Re: [algogeeks] C output

[Deepak Garg]

its output is

10

On Tue, Aug 23, 2011 at 12:03 AM, rohit rajuljain...@gmail.com wrote:

 #includestdio.h

 #define max(a,b) (ab?a:b)


 int main()
 {

  int j=max(3+2,2+8);
  printf(%d,j);

return 0;
 }

why this program show output as 9 ? please help me

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Re: [algogeeks] C output

[sagar pareek]

Yeah its o/p is 10 :)

On Tue, Aug 23, 2011 at 12:45 AM, Deepak Garg deepakgarg...@gmail.comwrote:

 its output is

 10


 On Tue, Aug 23, 2011 at 12:03 AM, rohit rajuljain...@gmail.com wrote:

 #includestdio.h

 #define max(a,b) (ab?a:b)


 int main()
 {

  int j=max(3+2,2+8);
  printf(%d,j);

return 0;
 }

why this program show output as 9 ? please help me

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Re: [algogeeks] C output

[gmagog...@gmail.com]

output is 10 using gcc 4.5.2

Yanan Cao



On Mon, Aug 22, 2011 at 2:18 PM, sagar pareek sagarpar...@gmail.com wrote:

 Yeah its o/p is 10 :)


 On Tue, Aug 23, 2011 at 12:45 AM, Deepak Garg deepakgarg...@gmail.comwrote:

 its output is

 10


 On Tue, Aug 23, 2011 at 12:03 AM, rohit rajuljain...@gmail.com wrote:

 #includestdio.h

 #define max(a,b) (ab?a:b)


 int main()
 {

  int j=max(3+2,2+8);
  printf(%d,j);

return 0;
 }

why this program show output as 9 ? please help me

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Re: [algogeeks] C output

[code pool]

10 as 3+22+8?3+2:2+8  510?5:10   ' + ' has more precedence then ?: as well
as  s o/p is 10..

correct me if i am wrong.

On Tue, Aug 23, 2011 at 12:50 AM, gmagog...@gmail.com
gmagog...@gmail.comwrote:

 output is 10 using gcc 4.5.2

 Yanan Cao



 On Mon, Aug 22, 2011 at 2:18 PM, sagar pareek sagarpar...@gmail.comwrote:

 Yeah its o/p is 10 :)


 On Tue, Aug 23, 2011 at 12:45 AM, Deepak Garg deepakgarg...@gmail.comwrote:

 its output is

 10


 On Tue, Aug 23, 2011 at 12:03 AM, rohit rajuljain...@gmail.com wrote:

 #includestdio.h

 #define max(a,b) (ab?a:b)


 int main()
 {

  int j=max(3+2,2+8);
  printf(%d,j);

return 0;
 }

why this program show output as 9 ? please help me

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Re: [algogeeks] C output

[sukran dhawan]

its 10
On Tue, Aug 23, 2011 at 12:03 AM, rohit rajuljain...@gmail.com wrote:

 #includestdio.h

 #define max(a,b) (ab?a:b)


 int main()
 {

  int j=max(3+2,2+8);
  printf(%d,j);

return 0;
 }

why this program show output as 9 ? please help me

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[algogeeks] C output

[rohit]

#includestdio.hconst char *fun();
int main()
{
char *ptr = fun();
return 0;
}const char *fun()
{
return Hello;
}


Why doesn't this code give error??

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Re: [algogeeks] C output

[Sanjay Rajpal]

This is becuase Hello is a constant string and constant strings get stored
in *Data Area, not in stack for the function you called. *Thats why pointer
to constant string will be returned and program will not produce any error.


Sanjay Kumar
B.Tech Final Year
Department of Computer Engineering
National Institute of Technology Kurukshetra
Kurukshetra - 136119
Haryana, India



On Tue, Aug 16, 2011 at 8:19 AM, rohit raman.u...@gmail.com wrote:

 #includestdio.hconst char *fun();
 int main()
 {
 char *ptr = fun();
 return 0;
 }const char *fun()
 {
 return Hello;
 }


 Why doesn't this code give error??

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Re: [algogeeks] C output

[himanshu kansal]

i think this must have produced a warning..conversion from const char *
to char*...

On Tue, Aug 16, 2011 at 8:52 PM, Sanjay Rajpal sanjay.raj...@live.inwrote:

 This is becuase Hello is a constant string and constant strings get
 stored in *Data Area, not in stack for the function you called. *Thats why
 pointer to constant string will be returned and program will not produce any
 error.


 Sanjay Kumar
 B.Tech Final Year
 Department of Computer Engineering
 National Institute of Technology Kurukshetra
 Kurukshetra - 136119
 Haryana, India



 On Tue, Aug 16, 2011 at 8:19 AM, rohit raman.u...@gmail.com wrote:

 #includestdio.hconst char *fun();
 int main()
 {
 char *ptr = fun();
 return 0;
 }const char *fun()
 {
 return Hello;
 }


 Why doesn't this code give error??

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[algogeeks] C Output

[Brijesh Upadhyay]

int main ()
{
  printf(%d,1+2+5);
  getch();
  return 0;
} 


what should it return and how..??

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Re: [algogeeks] C Output

[sukran dhawan]

i got a warning in gcc and the output was garbage

On Sun, Aug 14, 2011 at 11:44 AM, Brijesh Upadhyay 
brijeshupadhyay...@gmail.com wrote:

 int main ()
 {
   printf(%d,1+2+5);
   getch();
   return 0;
 }


 what should it return and how..??

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Re: [algogeeks] C Output

[Ankur Khurana]

5 will represent address of 5 in heap. so adding 3 to 5 increment tht
address by 3 and print it on the screen

On Sun, Aug 14, 2011 at 11:44 AM, Brijesh Upadhyay 
brijeshupadhyay...@gmail.com wrote:

 int main ()
 {
   printf(%d,1+2+5);
   getch();
   return 0;
 }


 what should it return and how..??

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-- 
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Computer Science
Netaji Subhas Institute Of Technology
Delhi.

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Re: [algogeeks] C Output

[rahul aravind]

I think the address of string 5 located will be added with 1 and 2...

On Sun, Aug 14, 2011 at 11:44 AM, Brijesh Upadhyay 
brijeshupadhyay...@gmail.com wrote:

 int main ()
 {
   printf(%d,1+2+5);
   getch();
   return 0;
 }


 what should it return and how..??

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[algogeeks] c output doubt

[rohit]

int main()
{
int a[5]={1,2,3,4,5};
printf(%d,a[4]-a[0])
}
why it show 4 not 16?

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Re: [algogeeks] c output doubt

[Avinash Dharan]

Pointer incrementation and subtraction are done in terms of memory blocks
and not addresses of memory.
For example,

int *p;
p++;

The pointer here jumps to the next integer location and not the next address
in memory.
Similarly,pointer subtraction will give the difference in indexes and not
the memory addresses.
If you try subtracting an integer pointer and a float pointer, it will be an
error.

On Fri, Aug 12, 2011 at 11:34 AM, rohit rajuljain...@gmail.com wrote:


 int main()
 {
 int a[5]={1,2,3,4,5};
 printf(%d,a[4]-a[0])
 }
 why it show 4 not 16?

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Re: [algogeeks] c output doubt

[Varun Jakhoria]

i didn't tried it  .. but it might  be internal conversion only , like
whenever we do +1 to the address of int it automatically convert it
into +4(i.e int size)

On Fri, Aug 12, 2011 at 11:34 AM, rohit rajuljain...@gmail.com wrote:

 int main()
 {
 int a[5]={1,2,3,4,5};
 printf(%d,a[4]-a[0])
 }
 why it show 4 not 16?

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...it's only about 0's  1's

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Re: [algogeeks] c output doubt

[siddharam suresh]

4*(sizeof(int *))
Thank you,
Siddharam


On Fri, Aug 12, 2011 at 11:56 AM, Varun Jakhoria varunjakho...@gmail.comwrote:

 i didn't tried it  .. but it might  be internal conversion only , like
 whenever we do +1 to the address of int it automatically convert it
 into +4(i.e int size)

 On Fri, Aug 12, 2011 at 11:34 AM, rohit rajuljain...@gmail.com wrote:
 
  int main()
  {
  int a[5]={1,2,3,4,5};
  printf(%d,a[4]-a[0])
  }
  why it show 4 not 16?
 
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 --
 Varun Jakhoria
 ...it's only about 0's  1's

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Re: [algogeeks] c output doubt

[Avinash Dharan]

On Fri, Aug 12, 2011 at 11:55 AM, Avinash Dharan avinashdha...@gmail.comwrote:

 Pointer incrementation and subtraction are done in terms of memory blocks
 and not addresses of memory.
 For example,

 int *p;
 p++;

 The pointer here jumps to the next integer location and not the next
 address in memory.
 Similarly,pointer subtraction will give the difference in indexes and not
 the memory addresses.
 If you try subtracting an integer pointer and a float pointer, it will be
 an error.


 On Fri, Aug 12, 2011 at 11:34 AM, rohit rajuljain...@gmail.com wrote:


 int main()
 {
 int a[5]={1,2,3,4,5};
 printf(%d,a[4]-a[0])
 }
 why it show 4 not 16?

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[algogeeks] c output

[rohit]

main()
{
int m,n;
m=3+max(2,3);
n=2*max(3,2);
printf(“%d,%d”,m,n);
}
ans:-m=2,n=3
why output is this???

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