#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "com_time.h"
#include "com_func.h"
/*
* Definition of leap year:
Rule 1: A year is called leap year if it is divisible by 400.
For example: 1600, 2000 etc leap year while 1500, 1700 are not leap year.
Rule 2: If year is not divisible by 400 as well as 100 but it is divisible by 4 then that year are also leap year.
For example: 2004, 2008, 1012 are leap year.
*/
int isleapyear(int year)
{
if ((year%400 == 0) || ((year%4 == 0) && (year%100 != 0))) {
printf("The year:%d is a leap year!
",year);
return 1;
}
return 0;
}
int istimelegal(int year, int month, int day){
if(year <= 0 || year >=3000)
{
printf("the year is out of range([0-3000]!
");
exit(EXIT_FAILURE);
}else {
if(isleapyear(year))
{
if(month < 1 || month >12)
{
printf("The month of the leap year is out of range
!");
}else {
if(month == 2)
{
if(day > 29)
{
printf("day:%d is out of range",day);
exit(EXIT_FAILURE);
}
}
else{
if((day <= 0) || (day > 31))
{
printf("day:%d is out of range",day);
exit(EXIT_FAILURE);
}
}
}
}else {//not leap year
if(month == 2)
{
if(day > 28)
{
printf("The month:%d of the year is out of range
!",month);
exit(EXIT_FAILURE);
}
}else {
if((day <= 0) || (day > 31))
{
printf("day:%d is out of range",day);
exit(EXIT_FAILURE);
}
}
}
}
return 1;
}
//2016-05-02
char *nextday(char *date)
{
int days[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
char str_year[5]={0};
char str_month[3]={0};
char str_day[3]={0};
int year=0;
int month=0;
int day=0;
//strncpy();
sscanf(date,"%4s-%2s-%2s",str_year,str_month,str_day);
/*printlog(str_year);
printlog(str_month);
printlog(str_day);
printf("%s-%s,%s%s,%s,%s
",str_year,str_month,str_day);*/
year = atoi(str_year);
month = atoi(str_month);
day = atoi(str_day);
//printf("day:%d-%d-%d
",year, month, day);
if(isleapyear(year))
{
days[2] = 29;
}
else {
days[2] = 28;
}
//judge time illegal or not
istimelegal(year,month,day);
int i = 0;
int tmp = 0;
tmp = month;
for(i = 1;i < 13;i++)
{
if(tmp != i)
{
continue;
}else {
if(day < days[i])
{
printlog("&&&&&&&&&&");
day++;
}else if(day == days[i]){
printlog("0000000");
month++;
if(month > 12)
{
printlog("121212122");
year++;
month %= 12;
}
printlog("********");
day = 1;
}else {
printlog("@@@@@@@@@@");
break;
}
/*printlog("&&&&&&&&&&");
day++;
printlog("@@@@@@@@@@");*/
}
}
//printf("day:%d-%d-%d
",year, month, day);
sprintf(date, "%4d-%0d-%0d", year, month, day);
//printlog(date);
//printf("%s
",date);
return date;
}
---------------------------------------------------------------------------------------
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
int main(int argc, char *argv[])
{
//char date[]="2016-03-31";
//char date[]="2016-02-29";
//char date[]="2016-03-09";
//char date[]="2016-12-31";
//char date[]="2015-03-31";
char date[]="2015-02-29";
//char date[]="2015-03-09";
//char date[]="2015-12-31";
//printf("%d
",isleapyear(2015));
nextday(date);
printlog(date);
return 0;
}