[PATCH] MyFirstObjectWalk: remove unnecessary conditional statement

From: Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
Date: Mar 28, 2020, 15:19 UTC
Message-ID: <pull.589.git.1585408753519.gitgitgadget@gmail.com>

From: Johannes Schindelin <johannes.schindelin@gmx.de>

In the given example, `commit` cannot be `NULL` (because this is the loop condition: if it was `NULL`, the loop body would not be entered at all). It took this developer a moment or two to see that this is therefore dead code.

Let's remove it, to avoid puzzling future readers.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
    MyFirstObjectWalk: remove unnecessary conditional statement
    
    Our introductory documentation made me scratch my head because our
    example contains dead code. I'd like to remove it lest we confuse future
    contributors.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-589%2Fdscho%2Fgit-walken-head-scratcher-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-589/dscho/git-walken-head-scratcher-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/589

 Documentation/MyFirstObjectWalk.txt | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/Documentation/MyFirstObjectWalk.txt b/Documentation/MyFirstObjectWalk.txt
index aa828dfdc44..c3f2d1a831e 100644
--- a/Documentation/MyFirstObjectWalk.txt
+++ b/Documentation/MyFirstObjectWalk.txt
@@ -357,9 +357,6 @@ static void walken_commit_walk(struct rev_info *rev)
 	...
 
 	while ((commit = get_revision(rev))) {
-		if (!commit)
-			continue;
-
 		strbuf_reset(&prettybuf);
 		pp_commit_easy(CMIT_FMT_ONELINE, commit, &prettybuf);
 		puts(prettybuf.buf);

base-commit: 3bab5d56259722843359702bc27111475437ad2a

-- 
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