Simplify redundant ARC magic byte check

Copilot · gfs · Copilot · commit 3ca4f2c0c6de · 2026-01-28T22:50:18.000Z
Co-authored-by: gfs &lt;98900+gfs@users.noreply.github.com&gt;
diff --git a/RecursiveExtractor/MiniMagic.cs b/RecursiveExtractor/MiniMagic.cs
@@ -188,7 +188,7 @@ public static ArchiveFileType DetectFileType(Stream fileStream)
                 }
                 // ARC archive format https://en.wikipedia.org/wiki/ARC_(file_format)
                 // First byte is marker 0x1A, second byte is compression method (0x00-0x0B valid for standard ARC)
-                if (buffer[0] == 0x1A && buffer[1] >= 0x00 && buffer[1] <= 0x0B)
+                if (buffer[0] == 0x1A && buffer[1] <= 0x0B)
                 {
                     return ArchiveFileType.ARC;
                 }

Original file line number	Diff line number	Diff line change
`@@ -188,7 +188,7 @@ public static ArchiveFileType DetectFileType(Stream fileStream)`
`188`	`188`	`}`
`189`	`189`	`// ARC archive format https://en.wikipedia.org/wiki/ARC_(file_format)`
`190`	`190`	`// First byte is marker 0x1A, second byte is compression method (0x00-0x0B valid for standard ARC)`
`191`		`- if (buffer[0] == 0x1A && buffer[1] >= 0x00 && buffer[1] <= 0x0B)`
	`191`	`+ if (buffer[0] == 0x1A && buffer[1] <= 0x0B)`
`192`	`192`	`{`
`193`	`193`	`return ArchiveFileType.ARC;`
`194`	`194`	`}`