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From: peturr02@ru.is To: gcc-gnats@gcc.gnu.org Subject: libstdc++/9169: filebuf output fails if codecvt<>::out returns noconv Date: Sat, 04 Jan 2003 10:26:00 -0000 [thread overview] Message-ID: <20030104102352.7244.qmail@sources.redhat.com> (raw) >Number: 9169 >Category: libstdc++ >Synopsis: filebuf output fails if codecvt<>::out returns noconv >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Sat Jan 04 02:26:00 PST 2003 >Closed-Date: >Last-Modified: >Originator: peturr02@ru.is >Release: gcc-3.2.1 >Organization: >Environment: Red Hat Linux 8.0 >Description: If a codecvt<char, char, mbstate_t> facet that returns false from always_noconv(), but returns noconv from out() is installed in a filebuf, no output is produced. >How-To-Repeat: See attachment. >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: text/plain; name="noconvout.cc" Content-Disposition: inline; filename="noconvout.cc" #include <locale> #include <algorithm> #include <cstddef> #include <cstdio> #include <string> #include <fstream> #include <iostream> using namespace std; class Cvt_to_upper : public codecvt<char, char, mbstate_t> { typedef codecvt<char, char, mbstate_t> Base; public: explicit Cvt_to_upper(size_t refs = 0) : Base(refs) { } protected: result do_in(state_type&, const extern_type* from, const extern_type* from_end, const extern_type*& from_next, intern_type* to, intern_type* to_end, intern_type*& to_next) const { while (from < from_end && to < to_end) *to++ = toupper(*from++); to_next = to; from_next = from; return from == from_end ? ok : partial; } bool do_always_noconv() const throw() { return false; } }; int main() { locale loc1; locale loc (loc1, new Cvt_to_upper); char name[] = "noconvXXXXXX"; mktemp(name); string str ("abcdefghijklmnopqrstuvwxyz"); string tmp; { ofstream out; out.imbue(loc); out.open(name); copy(str.begin(), str.end(), ostreambuf_iterator<char>(out)); } { ifstream in; in.open(name); copy(istreambuf_iterator<char>(in), istreambuf_iterator<char>(), back_inserter(tmp)); } remove(name); cout << tmp << endl; assert(tmp.size() == str.size()); assert(tmp == str); return 0; }
next reply other threads:[~2003-01-04 10:26 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-01-04 10:26 peturr02 [this message] 2003-02-16 16:10 paolo 2003-02-16 16:36 Paolo Carlini 2003-02-16 17:46 Pétur Runólfsson 2003-02-16 19:26 Paolo Carlini 2003-02-17 20:15 paolo 2003-02-17 21:56 Paolo Carlini
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