StackOverflow2013

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plurals

PO
primarykey
Id
5210052
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
2
CommunityOwnedDate
CreationDate
2011-03-06T10:51:13.937
FavoriteCount
0
LastActivityDate
2011-03-07T09:12:18.180
LastEditDate
2011-03-07T09:12:18.180
LastEditorUserId
266978
OwnerUserId
266978
ParentId
5209991
PostTypeId
2
Score
2
ViewCount
0
LastEditorDisplayName
text
Body
If you are trying to use the possibilities of the stream, for training purposes, then the code is fine. If you are just trying to write some data, then the seekp() method calls are not needed, since the writing pointer will be updated automatically to the end of the last write. seekp() is only needed if you need to navigate among records, as in a database, for example. <pre><code>ofstream fout(fpath,ios::out| ios::binary | ios::ate); fout.write((char*)&test,sizeof(test)); fout.write((char*)&temp,sizeof(temp)); fout.write((char*)o,sizeof(MyClass)); fout.write((char*)&l,sizeof(int)); fout.close(); </code></pre> This code will work just fine. About problems in your code, you seem to be mixin the C library stdio, with its fseek() function, with the seekp() and seekg() methods. So, it is not very valid to pass SEEK_SET as the first parameter of your call to seekp(). In C, you would write: <pre><code>#include <cstdio> //... fseek( f, 5, SEEK_SET ); // from the beginning fseek( f, -2, SEEK_CUR ); // from the current position fseek( f, 2, SEEK_CUR ); // from the current position fseek( f, -2, SEEK_END ); // from the end of the file </code></pre> SEEK_SET will have an int value (implementation-specific, say 2), and therefore, with your line: <pre><code>fout.seekp(SEEK_SET,ios::beg); </code></pre> You're just starting say 2 bytes off the beginning, while your file may or may not have contents when you open it. About ios::ate, it puts the pointers for reading and writing at the end of the file (you would have to use seekp and seekg to achieve the same behaviour if you needed it, instead of using ios::ate).
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Title
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1. This table or related slice is empty.
PostParentId
1. POC++: Correct use of stream operations
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USBaltasarq
UserOwnerUserId
1. USBaltasarq
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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 VTUpMod
2. VO
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CommentsPostId
1. COI suppose you mean *records* instead of *registers*?
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 USFred Foo
2. COSure. Sorry, too literal spanish translation.
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 USBaltasarq

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