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[PATCH] builtin/clean.c: Fix some sparse warnings

From
Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Date
Dec 20, 2012, 18:33 UTC
Message-ID
<50D35A13.9080605@ramsay1.demon.co.uk>

Sparse issues two "Using plain integer as NULL pointer" warnings (lines 41 and 47).

The first warning relates to the initializer expression in the declaration for the 'char *dir' variable. In order to suppress the warning, we simply replace the zero initializer with NULL.

The second warning relates to an expression, as part of an if conditional, using the equality operator to compare the 'dir' variable to zero. In order to suppress the warning, we replace the 'dir == 0' expression with the more idiomatic '!dir'.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
---
Hi Zoltan,

If you have already updated your patch and made this redundant (it's been a few days since I read the list or fetched git.git), please ignore this. Otherwise, could you please squash this into the new version of commit 16e4033e6 ("git-clean: Display more accurate delete messages", 17-12-2012).

[BTW, in the same conditional expression you have an strncmp() call which doesn't quite follow the style/conventions of the existing code.]

Thanks!

ATB, Ramsay Jones

 builtin/clean.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/builtin/clean.c b/builtin/clean.c
index 1c25a75..0c603c8 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -38,13 +38,13 @@ static void print_filtered(const char *msg, struct string_list *lst)
 {
 	int i;
 	char *name;
-	char *dir = 0;
+	char *dir = NULL;
 
 	sort_string_list(lst);
 
 	for (i = 0; i < lst->nr; i++) {
 		name = lst->items[i].string;
-		if (dir == 0 || strncmp(name, dir, strlen(dir)) != 0)
+		if (!dir || strncmp(name, dir, strlen(dir)) != 0)
 			printf("%s %s\n", msg, name);
 		if (name[strlen(name) - 1] == '/')
 			dir = name;
-- 
1.8.0
Next: Zoltan Klinger
Message 1 of 2 in “builtin/clean.c: Fix some sparse warnings”
  1. builtin/clean.c: Fix some sparse warningsRamsay Jones, Dec 20, 2012
  2. Zoltan KlingerDec 21, 2012

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