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Reduce hash value collision probability in src/main.c

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Original code use "hash_value = *name++", which may produce
hash value collision for word permutations like "abc", "bac" and "cba".
This commit is contained in:
Homer Hsing 2012-09-14 10:06:39 +08:00 committed by Damien Lespiau
parent 940522588a
commit 7186723f81
1 changed files with 3 additions and 3 deletions
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6
assembler/src/main.c
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@ -78,10 +78,10 @@ static void usage(void)
static int hash(char *name)
{
int ret = 0;
unsigned ret = 0;
while(*name)
ret += *name++;
return ret%HASHSZ;
ret = (ret << 1) + (*name++);
return ret % HASHSZ;
}
struct declared_register *find_register(char *name)