[PATCH v3] git: use ^=1 to toggle between 0 and 1

From: AreaZR via GitGitGadget <gitgitgadget@gmail.com>
Date: Dec 18, 2024, 00:42 UTC
Message-ID: <pull.1620.v3.git.git.1734482536998.gitgitgadget@gmail.com>
In-Reply-To: <pull.1620.v2.git.git.1734481009264.gitgitgadget@gmail.com>

From: Seija Kijin <doremylover123@gmail.com>

If it is known that an int is either 1 or 0, doing an exclusive or to switch instead of a modulus makes more sense and is more efficient.

Signed-off-by: Seija <doremylover123@gmail.com>
---
    git: use ^=1 to toggle between 0 and 1
    
    If it is known that an int is either 1 or 0, doing an exclusive or to
    switch instead of a modulus makes more sense and is more efficient.
    
    Signed-off-by: Seija Kijin doremylover123@gmail.com

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1620%2FAreaZR%2Fbuffer-v3
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1620/AreaZR/buffer-v3
Pull-Request: https://github.com/git/git/pull/1620

Range-diff vs v2:

 1:  5819a51526b ! 1:  f6e75d8eff0 Use ^=1 to toggle between 0 and 1
     @@ Metadata
      Author: Seija Kijin <doremylover123@gmail.com>
      
       ## Commit message ##
     -    Use ^=1 to toggle between 0 and 1
     +    git: use ^=1 to toggle between 0 and 1
      
          If it is known that an int is either 1 or 0,
          doing an exclusive or to switch instead of a

 diff.c                     | 2 +-
 t/helper/test-path-utils.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/diff.c b/diff.c
index 266ddf18e73..5c2ac8d6fd1 100644
--- a/diff.c
+++ b/diff.c
@@ -1231,7 +1231,7 @@ static void mark_color_as_moved(struct diff_options *o,
 							    &pmb_nr);
 
 			if (contiguous && pmb_nr && moved_symbol == l->s)
-				flipped_block = (flipped_block + 1) % 2;
+				flipped_block ^= 1;
 			else
 				flipped_block = 0;
 
diff --git a/t/helper/test-path-utils.c b/t/helper/test-path-utils.c
index 3129aa28fd2..0810647c722 100644
--- a/t/helper/test-path-utils.c
+++ b/t/helper/test-path-utils.c
@@ -188,7 +188,7 @@ static int check_dotfile(const char *x, const char **argv,
 	int res = 0, expect = 1;
 	for (; *argv; argv++) {
 		if (!strcmp("--not", *argv))
-			expect = !expect;
+			expect ^= 1;
 		else if (expect != (is_hfs(*argv) || is_ntfs(*argv)))
 			res = error("'%s' is %s.git%s", *argv,
 				    expect ? "not " : "", x);

base-commit: 063bcebf0c917140ca0e705cbe0fdea127e90086

-- 
gitgitgadget