18 lines
390 B
C
18 lines
390 B
C
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#include <ctime>
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#include <iostream>
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class Timer {
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public:
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Timer() { clock_gettime(CLOCK_REALTIME, &beg_); }
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double elapsed() {
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clock_gettime(CLOCK_REALTIME, &end_);
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return end_.tv_sec - beg_.tv_sec +
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(end_.tv_nsec - beg_.tv_nsec) / 1000000000.;
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}
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void reset() { clock_gettime(CLOCK_REALTIME, &beg_); }
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private:
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timespec beg_, end_;
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};
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