Re: [sqlite] sqlite3_column_blob does not return the size of the blob?

2013-04-18 Thread Michael Black 
http://www.sqlite.org/c3ref/column_blob.html

sqlite3_column_bytes should do what you need.


-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Paolo Bolzoni
Sent: Thursday, April 18, 2013 7:02 AM
To: sqlite-users@sqlite.org
Subject: [sqlite] sqlite3_column_blob does not return the size of the blob?

I need to save some blob (arbitrary precision numbers representations) on my
sqlite3 database.

And confused by the function:

const void *sqlite3_column_blob(sqlite3_stmt*, int iCol);

I would expect an output parameter (example type size_t*) to get the size of
the blob, but it is not there.

How can I know the length of the blob to read it correctly?

Thanks,
Paolo
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[sqlite] sqlite3_column_blob does not return the size of the blob?

2013-04-18 Thread Paolo Bolzoni 
I need to save some blob (arbitrary precision numbers representations) on my
sqlite3 database.

And confused by the function:

const void *sqlite3_column_blob(sqlite3_stmt*, int iCol);

I would expect an output parameter (example type size_t*) to get the size of
the blob, but it is not there.

How can I know the length of the blob to read it correctly?

Thanks,
Paolo
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sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users