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[PATCH 3/3] Silence a bunch of format-zero-length warnings

From
Felipe Contreras <felipe.contreras@gmail.com>
Date
May 4, 2014, 06:12 UTC
Message-ID
<1399183975-2346-4-git-send-email-felipe.contreras@gmail.com>
In-Reply-To
<1399183975-2346-1-git-send-email-felipe.contreras@gmail.com>
This is in gcc 4.9.0:
  wt-status.c: In function ‘wt_status_print_unmerged_header’:
  wt-status.c:191:2: warning: zero-length gnu_printf format string [-Wformat-zero-length]
    status_printf_ln(s, c, "");
    ^

We could pass -Wno-format-zero-length, but it seems compiler-specific flags are frowned upon, so let's just avoid the warning altogether.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 builtin/commit.c |  2 +-
 wt-status.c      | 22 +++++++++++-----------
 2 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/builtin/commit.c b/builtin/commit.c
index 9cfef6c..13b84e4 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -812,7 +812,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 				committer_ident.buf);
 
 		if (ident_shown)
-			status_printf_ln(s, GIT_COLOR_NORMAL, "");
+			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 
 		saved_color_setting = s->use_color;
 		s->use_color = 0;
diff --git a/wt-status.c b/wt-status.c
index ec7344e..b8841e1 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -188,7 +188,7 @@ static void wt_status_print_unmerged_header(struct wt_status *s)
 	} else {
 		status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
 	}
-	status_printf_ln(s, c, "");
+	status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_status_print_cached_header(struct wt_status *s)
@@ -204,7 +204,7 @@ static void wt_status_print_cached_header(struct wt_status *s)
 		status_printf_ln(s, c, _("  (use \"git reset %s <file>...\" to unstage)"), s->reference);
 	else
 		status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
-	status_printf_ln(s, c, "");
+	status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_status_print_dirty_header(struct wt_status *s,
@@ -223,7 +223,7 @@ static void wt_status_print_dirty_header(struct wt_status *s,
 	status_printf_ln(s, c, _("  (use \"git checkout -- <file>...\" to discard changes in working directory)"));
 	if (has_dirty_submodules)
 		status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
-	status_printf_ln(s, c, "");
+	status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_status_print_other_header(struct wt_status *s,
@@ -235,12 +235,12 @@ static void wt_status_print_other_header(struct wt_status *s,
 	if (!s->hints)
 		return;
 	status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
-	status_printf_ln(s, c, "");
+	status_printf_ln(s, c, "%s", "");
 }
 
 static void wt_status_print_trailer(struct wt_status *s)
 {
-	status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
+	status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 }
 
 #define quote_path quote_path_relative
@@ -826,7 +826,7 @@ static void wt_status_print_other(struct wt_status *s,
 	string_list_clear(&output, 0);
 	strbuf_release(&buf);
 conclude:
-	status_printf_ln(s, GIT_COLOR_NORMAL, "");
+	status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 }
 
 void wt_status_truncate_message_at_cut_line(struct strbuf *buf)
@@ -913,7 +913,7 @@ static void wt_status_print_tracking(struct wt_status *s)
 		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%c",
 				 comment_line_char);
 	else
-		fprintf_ln(s->fp, "");
+		fputs("", s->fp);
 }
 
 static int has_unmerged(struct wt_status *s)
@@ -1329,7 +1329,7 @@ void wt_status_print(struct wt_status *s)
 				on_what = _("Not currently on any branch.");
 			}
 		}
-		status_printf(s, color(WT_STATUS_HEADER, s), "");
+		status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
 		status_printf_more(s, branch_status_color, "%s", on_what);
 		status_printf_more(s, branch_color, "%s\n", branch_name);
 		if (!s->is_initial)
@@ -1342,9 +1342,9 @@ void wt_status_print(struct wt_status *s)
 	free(state.detached_from);
 
 	if (s->is_initial) {
-		status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
+		status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 		status_printf_ln(s, color(WT_STATUS_HEADER, s), _("Initial commit"));
-		status_printf_ln(s, color(WT_STATUS_HEADER, s), "");
+		status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
 	}
 
 	wt_status_print_updated(s);
@@ -1361,7 +1361,7 @@ void wt_status_print(struct wt_status *s)
 		if (s->show_ignored_files)
 			wt_status_print_other(s, &s->ignored, _("Ignored files"), "add -f");
 		if (advice_status_u_option && 2000 < s->untracked_in_ms) {
-			status_printf_ln(s, GIT_COLOR_NORMAL, "");
+			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
 			status_printf_ln(s, GIT_COLOR_NORMAL,
 					 _("It took %.2f seconds to enumerate untracked files. 'status -uno'\n"
 					   "may speed it up, but you have to be careful not to forget to add\n"
-- 
1.9.2+fc1.20.g204a630
Previous: Felipe ContrerasNext: brian m. carlson
Message 20 of 26 in “Fix a ton of compiler warnings”
  1. 0/3 Fix a ton of compiler warningsFelipe Contreras, May 4, 2014
  2. 1/3 Revert "make error()'s constant return value more visible"Felipe Contreras, May 4, 2014
  3. Jeff KingMay 5, 2014
  4. Felipe ContrerasMay 5, 2014
  5. Jeff KingMay 5, 2014
  6. Felipe ContrerasMay 5, 2014
  7. Jeff KingMay 5, 2014
  8. Felipe ContrerasMay 5, 2014
  9. Jeff KingMay 5, 2014
  10. 1/2 inline constant return from error() functionJeff King, May 6, 2014
  11. Junio C HamanoMay 6, 2014
  12. Jeff KingMay 7, 2014
  13. Junio C HamanoMay 11, 2014
  14. Jeff KingMay 12, 2014
  15. Felipe ContrerasMay 11, 2014
  16. Jonathan NiederMay 12, 2014
  17. Jeff KingMay 12, 2014
  18. 2/2 let clang use the constant-return error() macroJeff King, May 6, 2014
  19. 2/3 Revert "silence some -Wuninitialized false positives"Felipe Contreras, May 4, 2014
  20. 3/3 Silence a bunch of format-zero-length warningsFelipe Contreras, May 4, 2014
  21. brian m. carlsonMay 4, 2014
  22. Felipe ContrerasMay 4, 2014
  23. Jeff KingMay 5, 2014
  24. Junio C HamanoMay 7, 2014
  25. Heiko VoigtMay 7, 2014
  26. Junio C HamanoMay 7, 2014

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