winansi: use FLEX_ARRAY to avoid compiler warning

dscho · gitster · commit 41616ef61822 · 2019-10-06T09:07:44.000+09:00
MSVC would complain thusly:

    C4200: nonstandard extension used: zero-sized array in struct/union

Let's just use the `FLEX_ARRAY` constant that we introduced for exactly
this type of scenario.

Signed-off-by: Johannes Schindelin &lt;johannes.schindelin@gmx.de&gt;
Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/compat/winansi.c b/compat/winansi.c
@@ -546,7 +546,7 @@ static HANDLE swap_osfhnd(int fd, HANDLE new_handle)
 typedef struct _OBJECT_NAME_INFORMATION
 {
 	UNICODE_STRING Name;
-	WCHAR NameBuffer[0];
+	WCHAR NameBuffer[FLEX_ARRAY];
 } OBJECT_NAME_INFORMATION, *POBJECT_NAME_INFORMATION;
 
 #define ObjectNameInformation 1

Original file line number	Diff line number	Diff line change
`@@ -546,7 +546,7 @@ static HANDLE swap_osfhnd(int fd, HANDLE new_handle)`
`546`	`546`	`typedef struct _OBJECT_NAME_INFORMATION`
`547`	`547`	`{`
`548`	`548`	`UNICODE_STRING Name;`
`549`		`- WCHAR NameBuffer[0];`
	`549`	`+ WCHAR NameBuffer[FLEX_ARRAY];`
`550`	`550`	`} OBJECT_NAME_INFORMATION, *POBJECT_NAME_INFORMATION;`
`551`	`551`
`552`	`552`	`#define ObjectNameInformation 1`