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- Path: sparky!uunet!wupost!usc!nic.csu.net!vmsclst1.sc.csupomona.edu!mgeorgy
- Newsgroups: comp.lang.ada
- Subject: ADA help Urgently Requested..Please!!!!
- Message-ID: <1992Sep1.211014.1@vmsclst1.sc.csupomona.edu>
- From: mgeorgy@vmsclst1.sc.csupomona.edu
- Date: 1 Sep 92 21:10:14 PDT
- Organization: Computer Science Computational Systems
- Nntp-Posting-Host: csvax4
- Nntp-Posting-User: mgeorgy
- Lines: 124
-
- Hello, the program that follows began as a simple imaging program that I was
- writing for myself. But now it has become a big problem. Everything ok except
- the file opening and creating. When I run the program and select option 1 or
- 2, open or create a file, I get a DEVICE ERROR. I can tell you what is
- happening but I just don't know why. What is happening is that when it get to
- the GET_LINE statment it uses IN_FILE_NAME's decleration of ' '. Now I should
- tell anyone willing to help me that the statments work alone but not as part of
- another program (ie, IF statment, or sub-PROCEDURES). I have raked my brain
- and tried everything.
-
- SOMEONE PLEASE HELP ME!!!!!!
-
- THANX FOR ANY HELP,
- Matt Georgy
- California Polytechnic State University, Pomona -- Computer Science
-
- +++++++++++++++++++++++++++++++++++++++++++++++++++++++
- + Cal Poly, Pomona, Making Yesterdays Mistakes Today +
- +++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-
- P.S. Please reply by posting to the news group our mail system is screwed up
- right now.
-
- THANX AGAIN.
-
- -------------------------------------------------------------------------------
- with TEXT_IO, INTEGER_TEXT_IO, SEQUENTIAL_IO;
- use TEXT_IO, INTEGER_TEXT_IO;
-
- procedure IMAGE is
-
- type BYTE is range 0..255;
- for BYTE'size use 8;
-
- package BYTE_IO is new SEQUENTIAL_IO(BYTE);
- use BYTE_IO;
-
- type BYTE_STRING is ARRAY (1..512) of BYTE;
-
- INF : BYTE_IO.FILE_TYPE;
- IN_FILE_NAME : STRING (1..80) := (others => ' ');
- INPUT_LINE_LENGTH : INTEGER := 0;
- IN_FILE_OPEN : BOOLEAN := FALSE;
-
- OUTF : BYTE_IO.FILE_TYPE;
- OUT_FILE_NAME : STRING (1..80) := (others => ' ');
- OUTPUT_LINE_LENGTH : INTEGER := 0;
- OUT_FILE_OPEN : BOOLEAN := FALSE;
-
- READ_BYTE : BYTE;
- READ_STRING : BYTE_STRING;
- COUNTER : INTEGER := 0;
- SELECTION : INTEGER := 1;
-
- procedure IMAGING_MENU is
-
- begin
-
- NULL;
-
- end IMAGING_MENU;
-
- begin
-
- while SELECTION /= 0 loop
- PUT("STATUS: INPUT FILE: ");
- if IN_FILE_NAME(1) = ' ' then
- PUT("<NONE>");
- else
- PUT(IN_FILE_NAME);
- IN_FILE_OPEN := TRUE;
- end if;
- PUT(" ");
- PUT(" OUTPUT FILE: ");
- if OUT_FILE_NAME(1) = ' ' then
- PUT("<NONE>");
- else
- PUT(OUT_FILE_NAME);
- OUT_FILE_OPEN := TRUE;
- end if;
- NEW_LINE(2);
- PUT(" Welcome to POLY-Vision");
- NEW_LINE(3);
- PUT_LINE(" MAIN MENU");
- NEW_LINE;
- PUT_LINE(" (1) Get Input Filename");
- NEW_LINE;
- PUT_LINE(" (2) Get Output Filename");
- NEW_LINE;
- PUT_LINE(" (3) Begin Image Processing");
- NEW_LINE;
- PUT_LINE(" (0) Exit POLY-Vision");
- NEW_LINE(2);
- PUT_LINE(" CHOICE: ");
- GET(SELECTION);
- if SELECTION = 1 then
- PUT_LINE("INPUT FILE NAME: ");
- GET_LINE(IN_FILE_NAME, INPUT_LINE_LENGTH);
- open(INF, IN_FILE, IN_FILE_NAME(1..INPUT_LINE_LENGTH));
- elsif SELECTION = 2 then
- PUT("OUTPUT FILE NAME: ( ");
- PUT(IN_FILE_NAME(1..INPUT_LINE_LENGTH - 3));
- PUT_LINE("NEW )");
- GET_LINE(OUT_FILE_NAME, OUTPUT_LINE_LENGTH);
- if OUT_FILE_NAME(1) = ' ' then
- create(OUTF, OUT_FILE, IN_FILE_NAME(1..INPUT_LINE_LENGTH - 3) & "NEW");
- else
- create(OUTF, OUT_FILE, OUT_FILE_NAME(1..OUTPUT_LINE_LENGTH));
- end if;
- elsif SELECTION = 3 then
- IMAGING_MENU;
- else
- if IN_FILE_OPEN then
- close(INF);
- end if;
- if OUT_FILE_OPEN then
- close(OUTF);
- end if;
- EXIT;
- end if;
- end loop;
-
- end IMAGE;
-