__month_to_secs(int month,int is_leap)1int __month_to_secs(int month, int is_leap) 2 { 3 static const int secs_through_month[] = { 4 0, 31*86400, 59*86400, 90*86400, 5 120*86400, 151*86400, 181*86400, 212*86400, 6 243*86400, 273*86400, 304*86400, 334*86400 }; 7 int t = secs_through_month[month]; 8 if (is_leap && month >= 2) t+=86400; 9 return t; 10 } 11