From e5568d62af39962eeec2c89020719b6fafbdc838 Mon Sep 17 00:00:00 2001
From: Christian Kamm <kamm@incasoftware.de>
Date: Sat, 16 Aug 2008 12:32:22 +0200
Subject: [PATCH] Prevent cast error for cast(void) around expression
 statements.

Fixes:
run/e/ExpressionStatement_10_A
---
 gen/statements.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gen/statements.cpp b/gen/statements.cpp
index c84424ef..1076e199 100644
--- a/gen/statements.cpp
+++ b/gen/statements.cpp
@@ -122,7 +122,14 @@ void ExpStatement::toIR(IRState* p)
     if (exp) {
         if (global.params.llvmAnnotate)
             DtoAnnotation(exp->toChars());
-        elem* e = exp->toElem(p);
+        elem* e;
+        // a cast(void) around the expression is allowed, but doesn't require any code
+        if(exp->op == TOKcast && exp->type == Type::tvoid) {
+            CastExp* cexp = (CastExp*)exp;
+            e = cexp->e1->toElem(p);
+        }
+        else
+            e = exp->toElem(p);
         delete e;
     }
     /*elem* e = exp->toElem(p);