IO (Windows): removes unneeded null terminator appending

CarterLi · CarterLi · commit 3e1167260dea · 2025-12-17T14:30:07.000+08:00
diff --git a/src/common/io/io_windows.c b/src/common/io/io_windows.c
@@ -133,7 +133,7 @@ HANDLE openat(HANDLE dfd, const char* fileName, bool directory)
     wchar_t fileNameW[MAX_PATH];
     int len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, fileName, -1, fileNameW, ARRAY_SIZE(fileNameW));
     if (len == 0) return INVALID_HANDLE_VALUE;
-    fileNameW[len] = L'\0';
+    // Implies `fileNameW[len] = L'\0';` and `len` includes the null terminator
 
     for (int i = 0; i < len - 1; ++i)
     {

Original file line number	Diff line number	Diff line change
`@@ -133,7 +133,7 @@ HANDLE openat(HANDLE dfd, const char* fileName, bool directory)`
`133`	`133`	`wchar_t fileNameW[MAX_PATH];`
`134`	`134`	`int len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, fileName, -1, fileNameW, ARRAY_SIZE(fileNameW));`
`135`	`135`	`if (len == 0) return INVALID_HANDLE_VALUE;`
`136`		`- fileNameW[len] = L'\0';`
	`136`	+ // Implies `fileNameW[len] = L'\0';` and `len` includes the null terminator
`137`	`137`
`138`	`138`	`for (int i = 0; i < len - 1; ++i)`
`139`	`139`	`{`