Re: Need help

From:
Pavel Lepin <p.lepin@ctncorp.com>
Newsgroups:
comp.lang.c++
Date:
Fri, 22 Feb 2008 14:26:57 +0200
Message-ID:
<fpmf39$19c$1@aioe.org>
Triple-DES <fire13all@hotmail.com> wrote in
<bcfe1c3d-06ab-49c1-b3fb-21f438d8e307@t66g2000hsf.googlegroups.com>:

On 21 Feb, 20:19, "P. Lepin" <le...@ranselett.net> wrote:

bigmovieb...@gmail.com wrote:

Please can any of you guys write this program for me .


#include <stdexcept>
#include <string>
#include <iostream>
#include <istream>
#include <ostream>
#include <sstream>
using namespace std;
#define m 1<<8
#define si signed int
#define sz size
#define sb substr
#define st string
#define ss istringstream
#define cc(y) c<t,(l-y>0?l-y:1)>
template<class t,si l> class c{
public:t s_,z_;cc(2)*t_;si b_,l_;
static t*p(t s){t x;x=l==1?s:*cc(1)::p(s);
return new t(t(x.sz()<l?" ":"")+x);}
c(t s,si n=0)
:s_(s),z_(*c<t,m>::p(s)),b_(1),l_(!n?s.sz():n){
try{t_=new cc(2)(s_.sb(1,s_.sz()-2),l_);}
catch(out_of_range e){b_=!b_;}}
virtual ~c(){if(b_)delete t_;}
void operator[](si x){(*this)(x);if(b_)(*t_)[!b_];}
void operator()(si x){if(b_&&x)(*t_)(x);
if(l_!=l)cout<<z_.sb(z_.sz()-l_)<<endl;}};
int main(){st g,w;getline(cin,g);si i;cin>>i;ss k(g);
while(i--){k>>w;}c<st,m>o(w);o[1];}


Good one!


Thank you for your kind words. :-)

I really like how you involve so many c++ features in your
code.


"Abuse", you mean. :-) Note how many template classes the
compiler instantiates. And how many std::strings are
instantiated at run-time (and never released). Catching
std::out_of_range to stop recursion is pretty damn evil
too - I didn't even know I had it in me. I almost hope the
OP submits this to his instructor.

--
When all you have is a transformation engine, everything
looks like a tree.

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