From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-04-14 05:38:10
if you recall, all wide archive tests were failing for me. They still failed
with #18, and now I finally (after quite some debugging) know why.
The error I was getting was:
Exception in "call_test_main": std::length_error: basic_string::reserve
It occured even on test_vector, which is fairly simple. The generated data
22 boost::serialization ....
note that this was for wide archive, where the data should have being in UCS-4
encoding, i.e. ('2' <zero> <zero> <zero> '2' ...)
The reason, once found, is simple:
test_ostream os(testfile, TEST_STREAM_FLAGS);
You change codecvt in archive constructors and the archive also has locale
saver. The destructor for archive is called *before* destructor for 'os'. At
this time, codecvt is switched back, right? So, when destructor of 'os' calls
'close' which flushes the data, you're using default codecvt.
If I add explicit 'os.close()' after writing to archive, the written data is
What this means is that destructor of archive *really should* call 'flush' on
the stream. After I've made basic_text_oprimitive's destructor to flush
The test_vector passed with wide stream. I'm rerunning other tests now.
In fact, I'm getting suspicious about changing codecvt at all. I suppose that
if somebody is using wide streams, he already deals with encoding somehow, so
why serialization library should try to second-guess the user?
Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk