Function timeval_diff

Tools/time-func.cpp:8–19

#include <assert.h>

long long timeval_diff(struct timeval *start_time, struct timeval *end_time)
{ struct timeval temp_diff;
  struct timeval *difference;
  difference=&temp_diff;
  difference->tv_sec =end_time->tv_sec -start_time->tv_sec ;
  difference->tv_usec=end_time->tv_usec-start_time->tv_usec;
  while(difference->tv_usec<0)
  { difference->tv_usec+=1000000;
    difference->tv_sec -=1;
  }
  return 1000000LL*difference->tv_sec+difference->tv_usec;
}

double timeval_diff_in_seconds(struct timeval *start_time, struct timeval *end_time)
{