Check that there are some methods to iterate through before iterating

through them.

Check that there are some methods to iterate through before iterating
653c0597 · Vincent Béron · Alexandre Julliard · a3d0eeb9 · 653c0597
Commit 653c0597 authored Jan 31, 2005 by Vincent Béron Committed by Alexandre Julliard Jan 31, 2005
Hide whitespace changes
Inline Side-by-side

Showing with 7 additions and 6 deletions

write_msft.c tools/widl/write_msft.c +7 -6

No files found.
--- a/tools/widl/write_msft.c
+++ b/tools/widl/write_msft.c
@@ -1618,12 +1618,13 @@ static void add_interface_typeinfo(msft_typelib_t *typelib, type_t *interface)
    msft_typeinfo->typeinfo->datatype2 = num_funcs << 16 | num_parents;
    msft_typeinfo->typeinfo->cbSizeVft = num_funcs * 4;

-    func = interface->funcs;
-    while(NEXT_LINK(func)) func = NEXT_LINK(func);
-    while(func) {
-        if(add_func_desc(msft_typeinfo, func, idx) == S_OK)
-            idx++;
-        func = PREV_LINK(func);
+    if((func = interface->funcs)) {
+        while(NEXT_LINK(func)) func = NEXT_LINK(func);
+        while(func) {
+            if(add_func_desc(msft_typeinfo, func, idx) == S_OK)
+                idx++;
+            func = PREV_LINK(func);
+        }
    }
 }