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24 * $XConsortium: data_t.h /main/3 1996/06/11 17:19:11 cde-hal $
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54 #include "utility/types.h"
55 #include "utility/funcs.h"
56 #include "utility/buffer.h"
57 #include "dstr/memory_pool.h"
58 #include "utility/atoi_pearson.h"
59 #include "utility/atoi_larson.h"
60 #include "dstr/dlist_cell.h"
62 /****************************/
63 // record class. A record
64 // contains a key and a void*
66 /****************************/
68 class data_t : public dlist_cell
74 static atoi_pearson* pearson_convertor_ptr;
75 static atoi_larson* larson_convertor_ptr;
76 #define pearson_convertor (*pearson_convertor_ptr)
77 #define larson_convertor (*larson_convertor_ptr)
79 static atoi_pearson pearson_convertor;
80 static atoi_larson larson_convertor;
84 enum flag_type { INT=0, STRING=1, VOID=2 };
86 voidPtr dt; // rest of information in the record
93 data_t(): dt(0), flag(data_t::VOID) {} ;
95 data_t(int int_key, voidPtr d = 0) : dt(d), flag(data_t::INT)
96 { key.int_key = int_key; };
98 data_t(const char* char_ptr_key, int char_ptr_key_sz, voidPtr d = 0) ;
101 data_t& operator=(data_t&);
102 int operator==(data_t&);
104 virtual int bucket_num(int k, int p, int M ) ;
105 virtual int slot_num(int k, int rotate, int prime, int M ) ;
107 ostream& asciiOut(ostream& out, print_func_ptr_t print_f);
109 Boolean binaryIn(buffer&);
110 Boolean binaryOut(buffer&);
112 void* operator new( size_t );
113 void operator delete( void* );
115 friend ostream& operator <<(ostream& o, data_t& d);
116 friend istream& operator >>(istream& i, data_t& d);
119 friend void initialize_MMDB();
120 friend void quit_MMDB();
125 typedef data_t* data_tPtr;