Why in the first case f(1,2) is evaluated first ? Any plausible explanation for that ? Sanju :)
On Mon, Aug 29, 2011 at 12:50 AM, Vrashabh Irde <vrashab...@gmail.com>wrote: > Hi, > > See Question 11.17 of C FAQ . > http://c-faq.com/ansi/stringize.html > > > In the first case f(1,2) happens first and in the second case g(X) > happens first and then f(1,2) > > Hence in the first case - h(f(1,2,)) = h(12) = 12 > and second case = g(f(1,2)) = f(1,2) > > In other words > Case1: > - Expanding macro h: > - a => f(1,2) > - Expanding macro f: > - a##b => 12 > => 12 > => g(12) > - Expanding macro g: > - #a is replaced by a string: #a => "12" > O/P => "12" > > Case 2: > - Expanding macro g: > - #a => "f(1,2)" > O/P => "f(1,2)" > > > Macros are evil. > > Regards, > Vrashabh Irde > > On Mon, Aug 29, 2011 at 1:06 PM, Sahil Garg <garg.sahi...@gmail.com> > wrote: > > Plz explain the solution.. > > Acc to me it should be.. > > 12 > > 12 > > > > On 8/29/11, PRATEEK VERMA <prateek...@gmail.com> wrote: > >> #define g(a) #a > >> replaces any occurrence of g(a) with string a. > >> #define f(a,b) a##b > >> replaces any occurrence of f(a,b) with concatenation of a and b > >> > >> -- > >> 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. > >> > >> > > > > -- > > Sent from my mobile device > > > > Sahil Garg > > Computer Engg. DCE > > > > -- > > 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. > > > > > > -- > 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. > > -- 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.
