linux判断日期是否合法

 #include <time.h>
 #include <stdio.h>

 typedef enum
 {
     false = ,
     true =
 } bool;

 bool check_date(int year, int month, int day)
 {
     if (year <  || month <=  || month >
         || day <=  || day > )
           return false;

     struct tm tm_new;
     tm_new.tm_year = year - ;
     tm_new.tm_mon = month - ;
     tm_new.tm_mday = day;
     tm_new.tm_hour = ;
     tm_new.tm_min = ;
     tm_new.tm_sec = ;

     time_t time_new = mktime(&tm_new);
     localtime_r(&time_new, &tm_new);

     if (tm_new.tm_year != year -  || tm_new.tm_mon != month -  || tm_new.tm_mday != day)
           return false;
     return true;
 }