[C/C++]代码
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/*************************************************************************
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File : gettimeofday.c
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Author : Saurabh Gupta
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Desc : gettimeofday example c
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gettimeofday example linux
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gettimeofday example
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gettimeofday c
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gettimeofday example code
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Source : http://saurabhgupta0527.blogspot.com/p/c.html
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Created : PM 12:12 2 November 2011
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*************************************************************************/
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#include
<sys/time.h>
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#include
<stdio.h>
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int main
() {
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struct timeval
tim;
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gettimeofday(&tim,
NULL);
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double t1=tim.tv_sec+(tim.tv_usec/1000000.0);
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dosomething......
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gettimeofday(&tim,
NULL);
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double t2=tim.tv_sec+(tim.tv_usec/1000000.0);
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printf("%.6lf
seconds elapsed\n",
t2-t1);
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return 0;
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}
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/*
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OUTPUT
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[sgupta@rhel55x86
time]$ gcc gettimeofday.c -o gettimeofday
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[sgupta@rhel55x86
time]$ ./gettimeofday
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0.000000
seconds elapsed
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[sgupta@rhel55x86
time]$
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*/
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