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Fixed length calculation and added a test.

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This commit is contained in:
Andrey Semashev
2016-08-07 23:35:04 +03:00
parent 6abcc6cd09
commit 94f1e6b0c6
2 changed files with 12 additions and 2 deletions
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2
include/boost/detail/utf8_codecvt_facet.ipp
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@@ -204,7 +204,7 @@ BOOST_UTF8_DECL int utf8_codecvt_facet::do_length(
last_octet_count = (get_octet_count(*from_next)); last_octet_count = (get_octet_count(*from_next));
++char_count; ++char_count;
} }
return static_cast<int>(from_next-from_end); return static_cast<int>(from_next-from);
} }
BOOST_UTF8_DECL unsigned int utf8_codecvt_facet::get_octet_count( BOOST_UTF8_DECL unsigned int utf8_codecvt_facet::get_octet_count(

10
test/test_utf8_codecvt.cpp
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@@ -251,6 +251,16 @@ test_main(int /* argc */, char * /* argv */[]) {
) )
); );
} }
// Test length calculation
{
std::codecvt<wchar_t, char, std::mbstate_t> const& fac = std::use_facet< std::codecvt<wchar_t, char, std::mbstate_t> >(utf8_locale);
std::mbstate_t mbs = std::mbstate_t();
const int utf8_len = sizeof(td::utf8_encoding) / sizeof(*td::utf8_encoding);
int res = fac.length(mbs, reinterpret_cast< const char* >(td::utf8_encoding), reinterpret_cast< const char* >(td::utf8_encoding + utf8_len), ~static_cast< std::size_t >(0u));
BOOST_TEST_EQ(utf8_len, res);
}
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }