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ICU-23004 istreambuf_iterator example

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Markus Scherer 2025-03-24 11:42:05 -07:00
parent cb1de7ef66
commit 4e8ae459d1
1 changed files with 14 additions and 0 deletions
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14
icu4c/source/test/intltest/utfiteratortest.cpp
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@ -105,6 +105,20 @@ std::string_view firstSequence8(std::string_view s) {
}
}
template<typename InputStream> // some istream or streambuf
std::u32string cpFromInput(InputStream &in) {
// This is a single-pass input_iterator.
std::istreambuf_iterator bufIter(in);
std::istreambuf_iterator<typename InputStream::char_type> bufLimit;
auto begin = utfIterator<char32_t, UTF_BEHAVIOR_FFFD>(bufIter);
auto limit = utfIterator<char32_t, UTF_BEHAVIOR_FFFD>(bufLimit);
std::u32string s32;
for (; bufIter != bufLimit; ++bufIter) {
s32.push_back(*bufIter);
}
return s32;
}
#endif // SAMPLE_CODE
template<typename Unit>