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ybouhjira/month_length.h

Created January 21, 2014 19:53
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month lengh function
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month_length.h
int month_length(int year, int month)
{
return (month == 2) ? 28 + !(year % 4) : 30 + (((month * 9) >> 3) & 1);
}
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int longueur_mois(int an, int mois)
{
  assert(1 <= mois && mois <= 12);
  return mois == 2 ? an % 4? 28 : 29 : 30 + (((mois * 9) / 8) & 1);
}

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