Author: wyoung
Date: Wed Jun 27 11:05:10 2007
New Revision: 1625
URL: http://svn.gna.org/viewcvs/mysqlpp?rev=1625&view=rev
Log:
Clarified SSQLS BLOB userman section
Modified:
trunk/doc/userman/userman.dbx
Modified: trunk/doc/userman/userman.dbx
URL:
http://svn.gna.org/viewcvs/mysqlpp/trunk/doc/userman/userman.dbx?rev=1625&r1=1624&r2=1625&view=diff
==============================================================================
--- trunk/doc/userman/userman.dbx (original)
+++ trunk/doc/userman/userman.dbx Wed Jun 27 11:05:10 2007
@@ -1684,17 +1684,17 @@
copy of the <classname>ColData</classname> object's contents,
without interference.</para>
- <para>You might think you can use
- <classname>std::string</classname> instead of
- <classname>sql_blob</classname>, but the current
+ <para>Because <classname>ColData</classname> derives
+ from <classname>std::string</classname> and C++
+ strings handle binary data just fine, you might think
+ you can use <classname>std::string</classname> instead
+ of <classname>sql_blob</classname>, but the current
design of <classname>ColData</classname> converts to
- <classname>std::string</classname> via a C string. Thus,
- the BLOB data is truncated at the first embedded null
- character during the conversion from MySQL++'s internal data
- structure to the <classname>std::string</classname> field in
- your SSQLS. There's no way to fix that without completely
- redesigning either <classname>ColData</classname> or the
- SSQLS mechanism.</para>
+ <classname>std::string</classname> via a C string. As a
+ result, the BLOB data is truncated at the first embedded
+ null character during population of the SSQLS. There's
+ no way to fix that without completely redesigning either
+ <classname>ColData</classname> or the SSQLS mechanism.</para>
<para>The <classname>sql_blob</classname> typedef may be
changed to alias a different type in the future, so using it
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