[Issue 3495] Segfault(typinf.c) instantiating D variadic function with too few arguments

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=3495


Don <clugdbug at yahoo.com.au> changed:

           What    |Removed                     |Added
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           Keywords|                            |patch


--- Comment #1 from Don <clugdbug at yahoo.com.au> 2009-11-11 07:57:22 PST ---
CAUSE: if not enough arguments, tries to create a negatively-sized type info
array!

PATCH: expression.c, line 802 (DMD2 svn 241), at end of functionArguments():

---

    // If D linkage and variadic, add _arguments[] as first argument
-    if (tf->linkage == LINKd && tf->varargs == 1)
+    if (tf->linkage == LINKd && tf->varargs == 1 && arguments->dim >= nparams)
    {
    Expression *e;

    e = createTypeInfoArray(sc, (Expression **)&arguments->data[nparams],
        arguments->dim - nparams);
    arguments->insert(0, e);

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