我对时间标题乱搞,并遇到了一个错误:简单的C++时间程序错误
invalid conversion from 'tm*' to 'time_t'
你可以看到这里的错误是在一路下面的代码在底部时,我尝试使用difftime函数。我知道我只是在做一些愚蠢而非法的事情,但我不知道如何解决这个问题。如果有人有解决方案,请告诉我。谢谢!
该程序应该获取当前时间,从用户获取时间输入,然后查找时间差异。
代码:
#include <stdio.h>
#include <time.h>
int main()
{
time_t rawtime;
struct tm * timeinfo;
struct tm * cur_timeinfo_hold;
int year, month ,day,hour,minute,second;
double dif;
/* prompt user for time to be compared*/
printf ("Enter year: "); scanf ("%d",&year);
printf ("Enter month: "); scanf ("%d",&month);
printf ("Enter day: "); scanf ("%d",&day);
printf ("Enter hour: "); scanf ("%d",&hour);
printf ("Enter minute: "); scanf ("%d",&minute);
printf ("Enter second: "); scanf ("%d",&second);
/* get current timeinfo*/
time (&rawtime);
timeinfo = localtime (&rawtime);
/* print it */
printf("The present time is: "); printf(asctime (timeinfo));
/* set current time into a new variable to use for difftime, since timeinfo, will be changed */
cur_timeinfo_hold = timeinfo;
/* modify current timeinfo to the user's choice */
timeinfo->tm_year = year - 1900;
timeinfo->tm_mon = month - 1;
timeinfo->tm_mday = day;
timeinfo->tm_hour = hour;
timeinfo->tm_min = minute;
timeinfo->tm_sec = second;
mktime (timeinfo);
/* and print it */
printf ("time to compare: "); printf(asctime (timeinfo));
/* find time difference */
//dif = difftime (cur_timeinfo_hold,timeinfo); //error: invalid conversion from 'tm*' to 'time_t'
return 0;
}
谢谢!那工作 – darko 2012-01-05 22:58:01