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From: "Phillip Wood via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	Phillip Wood <phillip.wood@dunelm.org.uk>,
	Phillip Wood <phillip.wood@dunelm.org.uk>
Subject: [PATCH 1/2] add -p: use ALLOC_GROW_BY instead of ALLOW_GROW
Date: Mon, 17 Aug 2020 13:23:07 +0000	[thread overview]
Message-ID: <ae6ace43af9b25ee8f67b01ed1ec50064c8b006f.1597670589.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.702.git.1597670589.gitgitgadget@gmail.com>

From: Phillip Wood <phillip.wood@dunelm.org.uk>

This simplifies the code slightly, especially the third case where
hunk_nr was incremented a few lines before ALLOC_GROW().

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
---
 add-patch.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/add-patch.c b/add-patch.c
index f899389e2c..a15fa407be 100644
--- a/add-patch.c
+++ b/add-patch.c
@@ -457,11 +457,9 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
 			eol = pend;
 
 		if (starts_with(p, "diff ")) {
-			s->file_diff_nr++;
-			ALLOC_GROW(s->file_diff, s->file_diff_nr,
+			ALLOC_GROW_BY(s->file_diff, s->file_diff_nr, 1,
 				   file_diff_alloc);
 			file_diff = s->file_diff + s->file_diff_nr - 1;
-			memset(file_diff, 0, sizeof(*file_diff));
 			hunk = &file_diff->head;
 			hunk->start = p - plain->buf;
 			if (colored_p)
@@ -483,11 +481,9 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
 				 */
 				hunk->splittable_into++;
 
-			file_diff->hunk_nr++;
-			ALLOC_GROW(file_diff->hunk, file_diff->hunk_nr,
+			ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1,
 				   file_diff->hunk_alloc);
 			hunk = file_diff->hunk + file_diff->hunk_nr - 1;
-			memset(hunk, 0, sizeof(*hunk));
 
 			hunk->start = p - plain->buf;
 			if (colored)
@@ -511,7 +507,7 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
 			if (file_diff->mode_change)
 				BUG("double mode change?\n\n%.*s",
 				    (int)(eol - plain->buf), plain->buf);
-			if (file_diff->hunk_nr++)
+			if (file_diff->hunk_nr)
 				BUG("mode change in the middle?\n\n%.*s",
 				    (int)(eol - plain->buf), plain->buf);
 
@@ -520,9 +516,8 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps)
 			 * is _part of_ the header "hunk".
 			 */
 			file_diff->mode_change = 1;
-			ALLOC_GROW(file_diff->hunk, file_diff->hunk_nr,
+			ALLOC_GROW_BY(file_diff->hunk, file_diff->hunk_nr, 1,
 				   file_diff->hunk_alloc);
-			memset(file_diff->hunk, 0, sizeof(struct hunk));
 			file_diff->hunk->start = p - plain->buf;
 			if (colored_p)
 				file_diff->hunk->colored_start =
-- 
gitgitgadget


  reply	other threads:[~2020-08-17 13:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-17 13:23 [PATCH 0/2] add p in C tweaks Phillip Wood via GitGitGadget
2020-08-17 13:23 ` Phillip Wood via GitGitGadget [this message]
2020-08-17 18:35   ` [PATCH 1/2] add -p: use ALLOC_GROW_BY instead of ALLOW_GROW Junio C Hamano
2020-08-17 13:23 ` [PATCH 2/2] add -p: fix checking of user input Phillip Wood via GitGitGadget
2020-08-18  6:38   ` Johannes Schindelin
2020-08-18  6:39 ` [PATCH 0/2] add p in C tweaks Johannes Schindelin
2020-08-18 19:44 ` Junio C Hamano
2020-08-19  9:59   ` Phillip Wood

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