strng.h

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1 total messages Started by Jeffrey A Waller Mon, 09 Oct 1989 23:00

#486

Author: Jeffrey A Waller
Date: Mon, 09 Oct 1989 23:00

51 lines
1420 bytes

#ifndef __string
#define __string

#include <stream.h>
#include <string.h>

class string
{  friend ostream &operator<<(ostream &output,string &s); 

   private:
      
      char *dataptr;

   public:

      string(int size = 0)
      {  if(size > 0) dataptr = new char[size];
         else dataptr = 0;
      }

      string(char *copyfrom)
      {  if(copyfrom)
         {  dataptr = new char[strlen(copyfrom) + 1];  
            if(dataptr) strcpy(dataptr,copyfrom);
         }
         else dataptr = 0;
      }

      string(string &s)
      {  if(s.dataptr)
         {  dataptr = new char[strlen(s.dataptr) + 1];
            if(dataptr) strcpy(dataptr,s.dataptr);
         }
         else dataptr = 0;
      }

      string &operator=(string &s);

      string operator+(string &s);

      int operator==(string &s)
      {  if(dataptr && s.dataptr) return(!strcmp(dataptr,s.dataptr));
         else return(FALSE);
      }

      ~string()
      {  delete dataptr;
      }
};         

#endif

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