Hi,
I made a simple function that gets and prints tomorrow's date but it doesn't work.
It works only if I switch all "unsigned short" to regular "int".
I think there's a problem with getting variables from "scanf". (I tried to change %d to %lu in scanf sentence but it's not working either.)
Can anyone explain why its working only with int and how I can make it working with unsigned short?
Code:#include <stdio.h> void printTomorrow(unsigned short month, unsigned short day, unsigned short year); bool isLeapYear(unsigned short year); //check if it's a leap year void main(void) { unsigned short month, day, year; printf("Input the date of which you want to know tomorrow\n"); printf(">> "); scanf("%d %d %d", &month, &day, &year); //I inputed "7 31 2008" printf("year: %d month: %d day; %d\n", year, month, day); //check if all variables are inputed correctly. it doesn't. only variable "year" has right one, rest of them has 0. printTomorrow(month, day, year); } void printTomorrow(unsigned short month, unsigned short day, unsigned short year) { static unsigned short lastDay[13]={0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; if(isLeapYear(year)){ //if inputed year is leap lastDay[2]=29; //change Febrary's last day } if(month<1 || month>12 || day<1 || day>lastDay[month]) //error check fprintf(stderr, "printTomorrow:: Incorrect date!\n"); else{ day++; if(lastDay[month]<day){ //in case that inputed day is the last day of the month. day=1; month++; if(month == 13){ //in case that inputed date is the last day of the year. month=1; year++; } } printf("Tomorrow:: %d-%d-%d\n",month, day, year); } } bool isLeapYear(unsigned short year) { if(year%400 == 0) return 1; else if(year%4 ==0 && year%100!=0) return 1; else return 0; }
