76 lines
1.4 KiB
C++
76 lines
1.4 KiB
C++
#pragma once
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#include<streambuf>
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#include<string>
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namespace c11log {
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namespace details {
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class str_devicebuf:public std::streambuf {
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public:
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str_devicebuf()
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{
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_str.reserve(128);
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}
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const std::string& str_ref()
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{
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return _str;
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}
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void clear()
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{
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_str.clear();
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}
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protected:
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virtual int sync() override
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{
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return 0;
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}
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virtual std::streamsize xsputn(const char_type* s, std::streamsize count) override
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{
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_str.append(s, static_cast<unsigned int>(count));
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return count;
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}
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virtual int_type overflow(int_type ch) override
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{
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if (ch != traits_type::eof())
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_str.append((char*)&ch, 1);
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return 1;
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}
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private:
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std::string _str;
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};
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class fast_oss:public std::ostream {
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public:
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fast_oss():std::ostream(&_dev)
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{}
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~fast_oss()
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{}
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const std::string& str_ref() const
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{
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auto mydevice = static_cast<str_devicebuf*>(rdbuf());
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return mydevice->str_ref();
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}
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const std::string str() const
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{
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auto mydevice = static_cast<str_devicebuf*>(rdbuf());
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return mydevice->str_ref();
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}
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void clear()
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{
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auto mydevice = static_cast<str_devicebuf*>(rdbuf());
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mydevice->clear();
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}
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private:
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str_devicebuf _dev;
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};
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}
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} |