From ac64195ccd4f320659fd0058bc7524c6fd0b37b4 Mon Sep 17 00:00:00 2001 From: DJ Delorie Date: Wed, 20 Mar 2019 23:56:59 -0400 Subject: iconv, localedef: avoid floating point rounding differences [BZ #24372] Two cases of "int * 1.4" may result in imprecise results, which in at least one case resulted in i686 and x86-64 producing different locale files. This replaced that floating point multiply with integer operations. While the hash table margin is increased from 40% to 50%, testing shows only 2% increase in overall size of the locale archive. https://bugzilla.redhat.com/show_bug.cgi?id=1311954 Reviewed-by: Carlos O'Donell --- locale/programs/ld-collate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'locale/programs/ld-collate.c') diff --git a/locale/programs/ld-collate.c b/locale/programs/ld-collate.c index bb4e2c539d..19b23c2453 100644 --- a/locale/programs/ld-collate.c +++ b/locale/programs/ld-collate.c @@ -2401,8 +2401,8 @@ collate_output (struct localedef_t *locale, const struct charmap_t *charmap, runp = runp->next; } - /* Add 40% and find the next prime number. */ - elem_size = next_prime (elem_size * 1.4); + /* Add 50% and find the next prime number. */ + elem_size = next_prime (elem_size + elem_size >> 1); /* Allocate the table. Each entry consists of two words: the hash value and an index in a secondary table which provides the index -- cgit 1.4.1