sdl: error: Fix crash on certain Windows environment

Apparently caused by sdl.SetError(nil) but it doesn't always happen. See veandco#340 Signed-off-by: Lilis Iskandar <[email protected]>
neputevshina · Jul 9, 2018 · 04acf50 · 04acf50
1 parent 83f2819
commit 04acf50
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/sdl/error.go b/sdl/error.go
@@ -6,11 +6,14 @@ package sdl
 void GoSetError(const char *fmt) {
   SDL_SetError("%s", fmt);
 }
+
 */
 // #include "sdl_wrapper.h"
 import "C"
 import "errors"
 
+var emptyCString *C.char = C.CString("")
+
 // SDL error codes with their corresponding predefined strings.
 const (
 	ENOMEM      ErrorCode = C.SDL_ENOMEM      // out of memory
@@ -49,7 +52,7 @@ func SetError(err error) {
 		C.GoSetError(C.CString(err.Error()))
 		return
 	}
-	C.GoSetError(nil)
+	C.GoSetError(emptyCString)
 }
 
 // ClearError clears any previous error message.