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fast-import: use pointer-to-pointer to keep list tail

This is shorter, idiomatic, and it means the compiler does
not get confused about whether our "e" pointer is valid,
letting us drop the "e = e" hack.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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1 parent 1c71541 commit 4db34cc134978012cf3f1b07de981a0418ed1523 @peff peff committed with gitster Mar 21, 2013
Showing with 4 additions and 6 deletions.
  1. +4 −6 fast-import.c
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@@ -2613,7 +2613,7 @@ static int parse_from(struct branch *b)
static struct hash_list *parse_merge(unsigned int *count)
{
- struct hash_list *list = NULL, *n, *e = e;
+ struct hash_list *list = NULL, **tail = &list, *n;
const char *from;
struct branch *s;
@@ -2641,11 +2641,9 @@ static struct hash_list *parse_merge(unsigned int *count)
die("Invalid ref name or SHA1 expression: %s", from);
n->next = NULL;
- if (list)
- e->next = n;
- else
- list = n;
- e = n;
+ *tail = n;
+ tail = &n->next;
+
(*count)++;
read_next_command();
}

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