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https://stackoverflow.com/questions/459691/best-timing-method-in-c
Best timing method in C?
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153answered Jan 20, 2009 at 0:15
I think this should work:

#include <time.h>

clock_t start = clock(), diff;
ProcessIntenseFunction();
diff = clock() - start;

int msec = diff * 1000 / CLOCKS_PER_SEC;
printf("Time taken %d seconds %d milliseconds", msec/1000, msec%1000);
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Stack Overflow
https://stackoverflow.com/questions/459691
performance - Best timing method in C? - Stack Overflow
ウェブ2009年1月20日 · 6 Answers. Sorted by: 153. I think this should work: #include <time.h> clock_t start = clock(), diff; ProcessIntenseFunction(); diff = clock() - start; int msec = diff * 1000 / CLOCKS_PER_SEC; printf("Time taken %d seconds %d milliseconds", …
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