pass structure by reference / by value

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#305

From: EL
Date: Sat, 26 Jan 2002 16:46

46 lines
1887 bytes

Hi all,

I want to pass a structure to my own function and change its value, however
i couldn't get the expected result. why?

struct mystr
{
char id[7], name[21];
};

void appRec(mystr* , int&);

void main()
{
  mystr s[50];
  int i, j, b, ttl;
  char vid[7], bid[7];

  strcpy(s[0].id, "1000001");
  strcpy(s[0].name, "RobertHi");
  strcpy(s[1].id, "1000008");
  strcpy(s[1].name, "KawaiiNic");

  ttl = 2;
  appRec(s, ttl);
  for (i=0; i<ttl ; i++)
  {
   cout << "\nStud ID : " << s[i].id;
   cout << "\tName    : " << s[i].name;
  }

}

void appRec(mystr *s1, int &ttl)
{
  ttl++;
  cout << "\nTotal in function: " << ttl;
  strcpy(s1[ttl].id, "1000005");
  strcpy(s1[ttl].name, "Minotaic");
  int i=0;
  for (i=0; i<ttl; i++)
  {
   cout << "\nStud ID fnt : " << s1[i].id;
   cout << "\tName    fnt : " << s1[i].name;
  }
}

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From: "EL" <lameddie@yahoo.com>
Newsgroups: alt.comp.lang.learn.c-c++,borland.public.cpp.language,comp.lang.c++
Subject: pass structure by reference / by value
Date: Sun, 27 Jan 2002 00:46:30 +0800
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