int dayInMonthFromDayInYear(int dayInYear, bool leapYear)
{
const int d = dayInYear;
int step;
int next = 30;
if (d <= next)
return d + 1;
const int daysInFeb = (leapYear ? 29 : 28);
if (checkMonth(d, step, next, daysInFeb))
return d - step;
if (checkMonth(d, step, next, 31))
return d - step;
if (checkMonth(d, step, next, 30))
return d - step;
if (checkMonth(d, step, next, 31))
return d - step;
if (checkMonth(d, step, next, 30))
return d - step;
if (checkMonth(d, step, next, 31))
return d - step;
if (checkMonth(d, step, next, 31))
return d - step;
if (checkMonth(d, step, next, 30))
return d - step;
if (checkMonth(d, step, next, 31))
return d - step;
if (checkMonth(d, step, next, 30))
return d - step;
step = next;
return d - step;
}
int dayInMonthFromDayInYear(const int dayInYear, const bool leapYear)
{
int step;
int next = 30;
if (dayInYear <= next)
return dayInYear + 1;
const int daysInFeb = (leapYear ? 29 : 28);
if (checkMonth(dayInYear, step, next, daysInFeb))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 31))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 30))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 31))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 30))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 31))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 31))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 30))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 31))
return dayInYear - step;
if (checkMonth(dayInYear, step, next, 30))
return dayInYear - step;
step = next;
return dayInYear - step;
}
int checkDate(int year, int month, int day) {
// 1 ~ 12월 입력했는지 확인
if (!checkMonth(month)) {
printf("1 ~ 12월로 입력해주세요.\n");
return 0;
} else if (!checkDay(year, month, day)) {
printf("%d년 %d월 %d일은 존재하지 않습니다.\n", year, month, day);
return 0;
}
return 1;
}
/* The actual read function. */
void readin()
{
char* fname = ( char* )malloc( sizeof( char ) * 26 ) ; // The extra length for the null terminator.
readName( fname, 0, 26 ) ;
char* lname = ( char* )malloc( sizeof( char ) * 31 ) ;
readName( lname, 1, 31 ) ;
char* cardnum = ( char* )malloc( sizeof( char ) * 17 ) ;
readNums( cardnum, 0, 17 ) ;
char* month = ( char* )malloc( sizeof( char ) * 3 ) ;
readNums( month, 1, 3 ) ;
while( !checkMonth( month ) )
{
printf( "The entered month is not valid. Please try again.\n" ) ;
readNums( month, 1, 3 ) ;
}
char* year = ( char* )malloc( sizeof( char ) * 5 ) ;
readNums( year, 2, 5 ) ;
while( !checkYear( year ) )
{
printf( "The entered year is not valid. Please try again.\n" ) ;
readNums( year, 2, 5 ) ;
}
char* cvv = ( char* )malloc( sizeof( char ) * 4 ) ;
readNums( cvv, 3, 4 ) ;
if( strlen( cvv ) != 3 ) // String already checked for numbers. Check if all three are there.
{
printf( "Not enough digits for 3 digit CVV security code. Please try again. \n" ) ;
readNums( cvv, 3, 4 ) ;
}
char* zip = ( char* )malloc( sizeof( char ) * 6 ) ;
readNums( zip, 4, 6 ) ;
if( strlen( zip ) != 5 )
{
printf( "Not enough numbers for 5 digit zipcode. Please try again.\n" ) ;
readNums( zip, 4, 6 ) ;
}
char* amount = ( char* )malloc( sizeof( char ) * 10 ) ;
readAmount( amount, 10 ) ;
char* email = ( char* )malloc( sizeof( char ) * 25 ) ;
readEmail( email, 31 ) ;
display( fname, lname, cardnum, month, year, cvv, zip, amount, email ) ;
// Free up all the memory pointers used here.
free( fname ) ; free( lname ) ; free( cardnum ) ; free( month ) ; free( year ) ;
free( cvv ) ; free( zip ) ; free( amount ) ; free( email ) ;
}
