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void stopclock (void)
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void stopclock (void)
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{
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{
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    gettimeofday(&end_time, NULL);
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    gettimeofday(&end_time, NULL);
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}
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}
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/* print the time taken, in milliseconds = seconds / 1000 */
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/* print the time taken, in milliseconds = seconds/1000 */
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void printtimetaken (char *funcname)
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void printtimetaken (char *funcname)
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{
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{
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    double total_usecs = (end_time.tv_sec-start_time.tv_sec) * 1000000.0
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    double total_usecs = (end_time.tv_sec-start_time.tv_sec) * 1000000.0
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                       + (end_time.tv_usec-start_time.tv_usec);
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                       + (end_time.tv_usec-start_time.tv_usec);
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