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android cout 重定向
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| #include <android/log.h> | |
| class androidbuf: public std::streambuf { | |
| public: | |
| enum { bufsize = 128 }; // ... or some other suitable buffer size | |
| androidbuf() { this->setp(buffer, buffer + bufsize - 1); } | |
| private: | |
| int overflow(int c) { | |
| if (c == traits_type::eof()) { | |
| *this->pptr() = traits_type::to_char_type(c); | |
| this->sbumpc(); | |
| } | |
| return this->sync()? traits_type::eof(): traits_type::not_eof(c); | |
| } | |
| int sync() { | |
| int rc = 0; | |
| if (this->pbase() != this->pptr()) { | |
| __android_log_print(ANDROID_LOG_INFO, | |
| "Native", | |
| "%s", | |
| std::string(this->pbase(), | |
| this->pptr() - this->pbase()).c_str()); | |
| rc = 0; | |
| this->setp(buffer, buffer + bufsize - 1); | |
| } | |
| return rc; | |
| } | |
| char buffer[bufsize]; | |
| }; |
Author
dodola
commented
Oct 24, 2018
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