use auto for char-type
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@ -616,7 +616,7 @@ class string : public schema
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std::size_t utf8_length(const std::string &s) const
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std::size_t utf8_length(const std::string &s) const
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{
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{
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size_t len = 0;
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size_t len = 0;
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for (unsigned char c : s)
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for (auto c : s)
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if ((c & 0xc0) != 0x80)
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if ((c & 0xc0) != 0x80)
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len++;
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len++;
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return len;
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return len;
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