1970年1月1日00:00:00および指定時間以降のミリ秒数を取得

</pre><pre name="code" class="cpp">#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <time.h>
#include <ctype.h>
typedef long long int int64_time;
int t_year,t_mon,t_mday;
int64_time cost_time;

size_t find_num(const char *str, int *container, size_t max_size)
   {
       size_t str_l = strlen(str), i, cur;
       int buf = 0;
       char flag = 0;
   
       for(i = 0, cur = 0; i < str_l && cur < max_size; i++) {
           if(isdigit(str[i])) {
              buf = buf * 10 + str[i] - '0';
             flag = 1;
          } else if(flag) {
              container[cur++] = buf;
              buf = 0;
              flag = 0;
          }
      }
      if(flag && cur < max_size)
          container[cur++] = buf;
 
     return cur;
 }
int Get_Current_Time(int64_time count)
{
	time_t now;
	struct tm ts;
	char buf[80];
	size_t L;
	 int  i;
	now=count/1000;//    
	ts = *localtime(&now);
	strftime(buf, sizeof(buf), "%a %Y-%m-%d %H:%M:%S %Z", &ts);
	printf("The current time CST = %s
", buf);
	 int array[32];
  L= find_num(buf, array, 32);
	for(i = 0; i < L; i++)
	{
		 printf("array[%d]=%d
",i,array[i]);
	}
	 t_year=array[0];//    
	 t_mon=array[1];//    
	 t_mday=array[2];//   
	return 0;
}
int main(void)
{ 
	char buf[80];
	struct tm tm1;
	struct tm *tm2;
	struct timeval t_time;
	//      
	//get start time
	gettimeofday(&t_time, NULL);
	int64_time time_now = ((int64_time)t_time.tv_sec)*1000+(int64_time)t_time.tv_usec/1000;
	printf("The current time: %lld ms
", time_now);
	Get_Current_Time(time_now);
	//  1970            
	tm1.tm_sec = 0;/*   –      [0,59] */
	tm1.tm_min = 0;/*   -      [0,59] */
	tm1.tm_hour = 0;/*   -      [0,23] */
	tm1.tm_year = t_year-1900;/*   ，          1900 */
	tm1.tm_mon = t_mon-1;/*   （     ，0    ） -      [0,11] */
	tm1.tm_mday = t_mday;/*         -      [1,31] */
	time_t t1 = mktime(&tm1);//mktime()     timeptr   tm          1970 1 1 0 0 0       UTC        。
	printf("From 1970-1-1 00:00:00 To %d-%d-%d 00:00:00 = %lld ms
",t_year,t_mon,t_mday,(int64_time)t1*1000);//     1970 1 1 0 0 0         
	if(NULL == ( tm2 =localtime(&t1)))
	
		{
			return(0);
		}
	strftime(buf, sizeof(buf), "%a %Y-%m-%d %H:%M:%S %Z", tm2);
	printf("%s
", buf);
	cost_time=time_now-((int64_time)t1*1000);//                   
	printf("The cost time: %lld ms
", cost_time);
	return(0);
}