I must be missing something
fundamental here. The following code fragment doesn’t work (VC++ 8.0 SP1) – the
checked iterators in STL catch walking off the end of the source – transform_width
is attempting to access the second element of the vector
typedef
base64_from_binary<
transform_width<vector<char>::const_iterator, 6, 8>
> base64_t;
vector<char>
hippo(1);
string enc(base64_t(hippo.begin()),
base64_t(hippo.end())); // -> checked iterator assertion fires
In basic_text_oprimitive.ipp,
the iterator is a pointer so it’s possible it may be silently doing something
bad
Andrew
From: boost-users-bounces@lists.boost.org
[mailto:boost-users-bounces@lists.boost.org] On Behalf Of Robert Ramey
Sent: Friday, January 04, 2008 11:58 AM
To: boost-users@lists.boost.org
Subject: [Spam:***** SpamScore] Re: [Boost-users] base 64 encoding
Take
a look at basic_text_oprimitive.ipp around line # 64.
Note
that I add "padding" here to address this problem. Perhaps that
is the missing
magic.
Hmmm. perhaps that code should be part of the iterator.
Also
look at the code text_iterators_base64 in the serialization test suite.
Robert
Ramey