From: Jeff King Date: Thu, 21 Mar 2013 11:10:28 +0000 (-0400) Subject: drop some obsolete "x = x" compiler warning hacks X-Git-Tag: v1.8.2.1~54 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cbfd5e1cbb539b82a34195efd0edde20d45a6439;p=git drop some obsolete "x = x" compiler warning hacks In cases where the setting and access of a variable are protected by the same conditional flag, older versions of gcc would generate a "might be used unitialized" warning. We silence the warning by initializing the variable to itself, a hack that gcc recognizes. Modern versions of gcc are smart enough to get this right, going back to at least version 4.3.5. gcc 4.1 does get it wrong in both cases, but is sufficiently old that we probably don't need to care about it anymore. Signed-off-by: Jeff King Reviewed-by: Jonathan Nieder Signed-off-by: Junio C Hamano --- diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 00528ddc38..ad29000736 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -193,7 +193,7 @@ static int batch_one_object(const char *obj_name, int print_contents) unsigned char sha1[20]; enum object_type type = 0; unsigned long size; - void *contents = contents; + void *contents; if (!obj_name) return 1; diff --git a/fast-import.c b/fast-import.c index 583a439dba..e12a8b88ee 100644 --- a/fast-import.c +++ b/fast-import.c @@ -2434,7 +2434,7 @@ static void note_change_n(struct branch *b, unsigned char *old_fanout) { const char *p = command_buf.buf + 2; static struct strbuf uq = STRBUF_INIT; - struct object_entry *oe = oe; + struct object_entry *oe; struct branch *s; unsigned char sha1[20], commit_sha1[20]; char path[60];