isleap 58 ext/fileinfo/libmagic/cdf_time.c days += isleap(y) + 365; isleap 72 ext/fileinfo/libmagic/cdf_time.c int sub = mdays[m] + (m == 1 && isleap(year)); isleap 90 ext/fileinfo/libmagic/cdf_time.c if (m == 1 && isleap(year))