@rajeev
http://www.cplusplus.com/reference/clibrary/cstdio/scanf/
http://www.cplusplus.com/reference/clibrary/cstdio/printf/
On Thu, Jun 23, 2011 at 9:39 PM, rajeev bharshetty <rajeevr...@gmail.com>wrote:
> @ Piyush Could u provide the link to some source , because i am still
> unclear about the above concept .
>
> Regards
> Rajeev N B
>
>
>
>
> On Thu, Jun 23, 2011 at 8:32 PM, Piyush Sinha <ecstasy.piy...@gmail.com>wrote:
>
>> there is no as such logic behind it..its just the format specifier...
>>
>> u must be knowing printf returns the number of values it has printed(u can
>> check that)
>>
>> now, in printf if u write like *printf("%7s","a"), *it will create 7
>> columns for the output and print a in the last column and the returned value
>> of this printf will be 7..(u can check it)
>>
>> now if u write *printf("%*s",7,"a")* then u r giving additional
>> information of format specifier i.e 7..returned value of this printf is also
>> 7.
>>
>> Hence the above logic..hope I am able to clarify it...:)
>>
>>
>> On Thu, Jun 23, 2011 at 8:06 PM, Anika Jain <anika.jai...@gmail.com>wrote:
>>
>>> i mean how it working actually?
>>>
>>>
>>> On Thu, Jun 23, 2011 at 8:06 PM, Anika Jain <anika.jai...@gmail.com>wrote:
>>>
>>>> hey ya its working :) but whats the logic behind it??
>>>>
>>>>
>>>> On Thu, Jun 23, 2011 at 7:52 PM, Piyush Sinha <ecstasy.piy...@gmail.com
>>>> > wrote:
>>>>
>>>>> sorry by mistake i added it in scanf situation..
>>>>> actually this type of specifier can be used with printf statement for
>>>>> finding the sum...
>>>>>
>>>>> look at the code below....
>>>>>
>>>>> main()
>>>>> {
>>>>> int a=9;
>>>>> int b=3;
>>>>> printf("%d\n",printf("%*s%*s",a,"",b,""));
>>>>> system("pause");
>>>>> }
>>>>>
>>>>> On 6/23/11, Anika Jain <anika.jai...@gmail.com> wrote:
>>>>> > thanx .. can u explain me how this is used in finding sum of 2 vars
>>>>> without
>>>>> > using + ??
>>>>> >
>>>>> >
>>>>> > On Thu, Jun 23, 2011 at 7:20 PM, Piyush Sinha
>>>>> > <ecstasy.piy...@gmail.com>wrote:
>>>>> >
>>>>> >> An asterisk indicates that the data is to be retrieved from the use
>>>>> >> but ignored, i.e. it is not stored in the corresponding
>>>>> >> argument...hence the third value entered gets stored for b and for c
>>>>> >> the output comes to garbage value....
>>>>> >>
>>>>> >> One beautiful application of such type of implementation is in
>>>>> finding
>>>>> >> the sum of 2 variables without using + operator..:)
>>>>> >>
>>>>> >> On 6/23/11, Anika Jain <anika.jai...@gmail.com> wrote:
>>>>> >> > int main()
>>>>> >> > {
>>>>> >> > int a,b, c;
>>>>> >> > scanf("%d%*d%d",&a,&b,&c);
>>>>> >> > printf("%d %d %d",a,b,c);
>>>>> >> > }
>>>>> >> >
>>>>> >> > output: 25 35 garbage
>>>>> >> >
>>>>> >> > how is it happening??
>>>>> >> >
>>>>> >> > --
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>>>>> >> >
>>>>> >> >
>>>>> >>
>>>>> >>
>>>>> >> --
>>>>> >> *Piyush Sinha*
>>>>> >> *IIIT, Allahabad*
>>>>> >> *+91-8792136657*
>>>>> >> *+91-7483122727*
>>>>> >> *https://www.facebook.com/profile.php?id=100000655377926 *
>>>>> >>
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>>>>> >>
>>>>> >
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>>>>> >
>>>>> >
>>>>>
>>>>>
>>>>> --
>>>>> *Piyush Sinha*
>>>>> *IIIT, Allahabad*
>>>>> *+91-8792136657*
>>>>> *+91-7483122727*
>>>>> *https://www.facebook.com/profile.php?id=100000655377926 *
>>>>>
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>>>>>
>>>>>
>>>>
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>>
>>
>>
>> --
>> *Piyush Sinha*
>> *IIIT, Allahabad*
>> *+91-8792136657*
>> *+91-7483122727*
>> *https://www.facebook.com/profile.php?id=100000655377926 *
>>
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>
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--
HARSHIT PAHUJA
M.N.N.I.T.
ALLAHABAD
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