a##b means you are using the value of ab whatever the value of a and b is given.
On Mon, Aug 15, 2011 at 1:13 PM, Sanjay Rajpal <[email protected]>wrote: > ## is used for concatenation in C. > > > > On Mon, Aug 15, 2011 at 12:40 AM, Nitin <[email protected]> wrote: > >> #include<stdio.h> >> #define fun(arg) do\ >> {\ >> if(arg)\ >> printf("have fun...","\n");\ >> }while(i--) >> >> main() >> { >> int i=6; >> fun(i<5); >> } >> >> give the answer and please give the reason for this >> >> #include<stdio.h> >> #define fun(a,b) a##b >> main() >> { >> int a, b, ab; >> a = 1, b = 2, ab = 3; >> printf("%d %d", fun(a,b), ab); >> return -1; >> >> } >> please tell me the use of this # in this program >> ~ >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Anil Kumar Arya B.Tech III year computer science & engineering M.N.N.I.T Allahabad. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
