85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
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/***********************************************************************\
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* *
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* DELETION.C Copyright (C) 1993 Sequiter Software Inc. *
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* *
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\***********************************************************************/
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/* See User's Manual, page 58 */
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#include "d4all.h"
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#ifdef __TURBOC__
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extern unsigned _stklen = 10000;
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#endif
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CODE4 code_base;
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DATA4 *data_file = 0;
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FIELD4INFO field_info[]=
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{
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{"DUMMY",'C',10,0},
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{"MEMO",'M',10,0},
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{0,0,0,0},
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};
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void print_delete_status(int status,long rec_no)
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{
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if(status)
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printf("Record %5ld - DELETED\n",rec_no);
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else
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printf("Record %5ld - NOT DELETED\n",rec_no);
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}
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void print_records(DATA4 *data_file)
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{
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int rc,status;
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long rec_no;
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printf("\n");
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rc = d4top(data_file);
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while(rc != r4eof)
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{
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rec_no = d4recno(data_file);
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status = d4deleted(data_file);
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print_delete_status(status,rec_no);
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rc = d4skip(data_file,1L);
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}
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}
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void main()
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{
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int count;
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d4init(&code_base);
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data_file = d4create(&code_base, "TUTOR5", field_info, 0);
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e4exit_test(&code_base);
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for(count = 0;count < 5;count ++)
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d4append_blank(data_file);
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print_records(data_file);
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d4go(data_file,3L);
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d4delete(data_file);
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d4go(data_file,1L);
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d4delete(data_file);
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d4go(data_file,4L);
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d4delete(data_file);
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print_records(data_file);
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d4go(data_file,3L);
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d4recall(data_file);
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print_records(data_file);
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d4pack(data_file);
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d4memo_compress(data_file);
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print_records(data_file);
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d4close_all(&code_base);
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d4init_undo(&code_base);
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mem4reset() ;
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}
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