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https://issues.apache.org/jira/browse/STDCXX-332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12469903
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Martin Sebor commented on STDCXX-332:
-------------------------------------
Looks like this is caused by the fact that we don't yet implement the accepted
resolution of LWG issue 453 (now in DR status):
http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#453
> ostringstream::tellp() returns -1 when the stream is empty
> ----------------------------------------------------------
>
> Key: STDCXX-332
> URL: https://issues.apache.org/jira/browse/STDCXX-332
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 27. Input/Output
> Affects Versions: 4.1.3
> Reporter: Mark Brown
>
> When I call tellp() on an empty stringstream I get -1 instead of 0.
> #include <cassert>
> #include <sstream>
> main()
> {
> std::ostringstream out;
> std::ios::pos_type pos = out .tellp () ;
> assert (pos == 0);
> return 0;
> }
> test: test.cpp:9: int main(): Assertion `pos == 0' failed.
> Aborted
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