Re: I'm a newbie. Is this code ugly?

From:
"io_x" <a@b.c.invalid>
Newsgroups:
comp.lang.c++
Date:
Wed, 20 Jan 2010 17:04:35 +0100
Message-ID:
<4b5727ad$0$1107$4fafbaef@reader4.news.tin.it>
"io_x" <a@b.c.invalid> ha scritto nel messaggio
news:4b57269b$0$1132$4fafbaef@reader1.news.tin.it...

class T{
public:
char *num_, *surname_;
char *key_;

T(){num_=0; surname_=0; key_=0;}

int alloca(char *num, char *key, char *surname)
{num_=0; surname_=0; key_=0;
 num_=faiMemCopia(num);
 if(num_==0) return 0;
 surname_=faiMemCopia(surname);
 if(surname==0)
      {la0:
       free(num_); num_=0;
       R 0;
      }
 key_=faiMemCopia(key);
 if(key_==0){free(surname_); surname_=0;
             goto la0;
            }
 R 1;
}

void Tfree(void)
{free(num_); free(key_); free(surname_);
 num_=0; surname_=0; key_=0;
}

};

class ArrArrT{
public:
T** v;
int n;
int sz;

 ArrArrT(){v=0; n=0; sz=0;}

 int add(char *num, char *key, char *surname)
 {if(sz<=n){T **p;
            p=(T**)realloc(v, (n+128)*sizeof(T*));
            if(p==0) R 0;
            sz=n+128;
            v =p;
           }
  v[n]=(T*) malloc(sizeof(T));
  if(v[n]==0) R 0;
  if( v[n]->alloca(num, key, surname)==0)
               R 0;


i think here there is one error should be
   if( v[n]->alloca(num, key, surname)==0)
                {free(v[n]); R 0;}

  ++n;
  R 1;
 }

void sort()
{int i, hit=1, len=n;
T *temp;

 while(len>1&&hit)
    {len--;
     hit=0;
     for(i=0; i<len; ++i)
       if(strcmp(v[i]->key_,v[i+1]->key_)>0)
           {temp=v[i]; v[i]=v[i+1]; v[i+1]=temp; hit=1;}
    }
}

~ArrArrT(){int i=n;
           for(--i; i>=0; --i)
              {v[i]->Tfree();
               free(v[i]);
              }
           free(v);
          }

T& operator[](int i)
{static T no;
 if(i<0||i>=n)
   {cout << "\n\aIndice fuori dei limiti\n"; R no;}
 R *(v[i]);
}


this has some problem can be resolved in a custom operator= ??

};

int main(void)
{int i;
ArrArrT a;
i=1;
i*=a.add("a","Mann","Thomas");
i*=a.add("b","Satie","Erik");
i*=a.add("c","Goldfarb","Sarah");
i*=a.add("d","Ravel","Maurice");
i*=a.add("e","Hideyuki","Tanaka");
i*=a.add("f","Twain","Mark");
if(i==0) {cout << "Memory error\n"; R 0;}
a.sort();

for(i=0; i<a.n; ++i)
   cout <<a.v[i]->surname_<<"\t"<<a.v[i]->key_<<"\n";

for(i=0; i<a.n; ++i)
   cout <<a[i].surname_<<"\t"<<a[i].key_<<"\n";

R 0;
}

Sarah Goldfarb
Tanaka Hideyuki
Thomas Mann
Maurice Ravel
Erik Satie
Mark Twain
Sarah Goldfarb
Tanaka Hideyuki
Thomas Mann
Maurice Ravel
Erik Satie
Mark Twain

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