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[4] | 1 | /**
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| 2 | * @file formatter.hpp
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| 3 | * @author myusgun@gmail.com
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| 4 | * @brief Formatter
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| 5 | */
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| 6 | #ifndef __formatter_hpp__
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| 7 | #define __formatter_hpp__
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| 8 |
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| 9 | #include <sstream>
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| 10 | #include <string>
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| 11 |
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| 12 | /**
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| 13 | * make string using Formatter
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| 14 | * @see Formatter
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| 15 | */
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| 16 | #define STR(_x) (cf::formatter() << _x).str()
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| 17 |
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| 18 | namespace cf
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| 19 | {
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| 20 | /**
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| 21 | * a wrapper-class of std::ostringstream for temporary instance
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| 22 | * @see STR() macro
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| 23 | * @remarks http://stackoverflow.com/questions/303562/c-format-macro-inline-ostringstream
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| 24 | */
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| 25 | class formatter
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| 26 | {
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| 27 | private:
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| 28 | std::ostringstream mOSS;
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| 29 |
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| 30 | public:
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| 31 | template<typename T>
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| 32 | formatter & operator << (const T & v)
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| 33 | {
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| 34 | mOSS << v;
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| 35 | return *this;
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| 36 | }
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| 37 |
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| 38 | formatter & operator << (cf::char_t * v)
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| 39 | {
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| 40 | mOSS << (v ? v : "null");
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| 41 | return *this;
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| 42 | }
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| 43 |
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| 44 | formatter & operator << (const cf::char_t * v)
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| 45 | {
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| 46 | mOSS << (v ? v : "null");
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| 47 | return *this;
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| 48 | }
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| 49 |
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| 50 | std::string str()
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| 51 | {
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| 52 | return mOSS.str();
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| 53 | }
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| 54 | };
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| 55 | }
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| 56 |
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| 57 | #endif // #ifndef __formatter_hpp__
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