?? system.cc
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// System dependent routines// File: system.cpp / system.cc#include "system.hpp"double seconds(){#ifdef BSD // BSD system instead of SYSV rusage time; getrusage(RUSAGE_SELF,&time); return (double)(1.0*time.ru_utime.tv_sec+0.000001*time.ru_utime.tv_usec);#else return double(clock())/CLOCKS_PER_SEC;#endif}?? 快捷鍵說(shuō)明
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