String class

Replies

• 

  Nikhil Lokhande

  Pass base address of string...
  
  myname(&m);
  
  retrieve as
  
  char myname (char *m)
• 

  rahul69

  Vicky One

  Hi can any one tell me how to pass a string as an argument in a funtion or a method of a class,and its further use in that method or function for certain operation over it... like below
  
  

  #include
  #include
  #include
  char myname(char m);
  int main()
  {
  char m[40]="vicky one";
    myname();
  }
  char myname(char m)
  { char abc[80];
  abc=m||m;
  return abc;
  }

  
  its is only a sample code(according to my mind), i wish u understand what i want to know for string as an argument and its further use in that method or function. ThanXXX..........

  Since this string is basically an array of characters, u can pass it as an array is passed (ie pass by reference) or u can send an array into a character pointer which will hold the address of first element of array.
  See this example for better understanding:
  Using Arrays:
  

  #include
  #include
  
  void myname(char name[])
  {
  cout<<"My name is "<Using Pointers:
  
  #include
  #include
  
  void myname(char *pname)
  {
  cout<<"My name is "<
                                      

• 

  Vicky One

  Thx alot ,,,i got some idea .. @#-Link-Snipped-#. Your way of telling the solution us owsome...
  but what about character pointer if it holds the address of 1st element,what if our array has more than one element..?
  
  Will all of the index be accessed???
• 

  rahul69

  Vicky One

  Thx alot ,,,i got some idea .. @#-Link-Snipped-#. Your way of telling the solution us owsome...
  but what about character pointer if it holds the address of 1st element,what if our array has more than one element..?
  
  Will all of the index be accessed???

  Arrays are stored in continuous memory locations. So when we increment the pointer, it will give the address of next memory location,
  So for example, if we have an integer array referenced with the pointer, say P,
  then P+1 will represent the address of next element, and it's value can be accessed as *(P+1) or P[1]. 😀 Note: Here we are not changing value of the pointer
  
  Although, if u will move your pointer as P=P+1 (or P++), then u will lose your first element, but generally u don't need to do that, on the bright side u can use same pointer for different arrays whenever needed, by changing the address it points to.