Re: [PATCH] resolve-undo.c: silence compiler complaints by casting void * to char *

[Junio C Hamano <gitster@pobox.com>]

Junio C Hamano <gitster@pobox.com> writes:

> Thanks for catching this.
>
> In this particular case, I however suspect that it would be cleaner to
> declare that the first parameter to resolve_undo_read() is a "char *"
> (or even "const char *"), as we are dealing with NUL delimited list of
> octal numbers and character strings.

It would look like this.  I wonder if we should make hash*() inline
functions to take (void *) or (const void *) pointers to avoid further
noises like this but that would be a separate topic.

 resolve-undo.c |    4 ++--
 resolve-undo.h |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/resolve-undo.c b/resolve-undo.c
index 37d73cd..0f50ee0 100644
--- a/resolve-undo.c
+++ b/resolve-undo.c
@@ -53,7 +53,7 @@ void resolve_undo_write(struct strbuf *sb, struct string_list *resolve_undo)
 	for_each_string_list(write_one, resolve_undo, sb);
 }
 
-struct string_list *resolve_undo_read(void *data, unsigned long size)
+struct string_list *resolve_undo_read(const char *data, unsigned long size)
 {
 	struct string_list *resolve_undo;
 	size_t len;
@@ -93,7 +93,7 @@ struct string_list *resolve_undo_read(void *data, unsigned long size)
 				continue;
 			if (size < 20)
 				goto error;
-			hashcpy(ui->sha1[i], data);
+			hashcpy(ui->sha1[i], (const unsigned char *)data);
 			size -= 20;
 			data += 20;
 		}
diff --git a/resolve-undo.h b/resolve-undo.h
index e4e5c1b..8458769 100644
--- a/resolve-undo.h
+++ b/resolve-undo.h
@@ -8,7 +8,7 @@ struct resolve_undo_info {
 
 extern void record_resolve_undo(struct index_state *, struct cache_entry *);
 extern void resolve_undo_write(struct strbuf *, struct string_list *);
-extern struct string_list *resolve_undo_read(void *, unsigned long);
+extern struct string_list *resolve_undo_read(const char *, unsigned long);
 extern void resolve_undo_clear_index(struct index_state *);
 extern int unmerge_index_entry_at(struct index_state *, int);
 extern void unmerge_index(struct index_state *, const char **);