From ed7dd481e5d56a014936b278171a57239f11999f Mon Sep 17 00:00:00 2001
From: Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
Date: Wed, 8 Oct 2008 22:38:52 +0200
Subject: [PATCH] Fixed dynamic array -> boolean. does (arr.ptr !is null) now
 instead of (arr.length != 0)

---
 gen/llvmhelpers.cpp   | 6 ++++--
 tests/mini/strings2.d | 5 +++++
 2 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 tests/mini/strings2.d

diff --git a/gen/llvmhelpers.cpp b/gen/llvmhelpers.cpp
index f1cad18d..932ab667 100644
--- a/gen/llvmhelpers.cpp
+++ b/gen/llvmhelpers.cpp
@@ -1562,8 +1562,10 @@ LLValue* DtoBoolean(Loc& loc, DValue* dval)
     // dynamic array
     else if (ty == Tarray)
     {
-        // return (arr.length != 0)
-        return gIR->ir->CreateICmpNE(DtoArrayLen(dval), DtoConstSize_t(0), "tmp");
+        // return (arr.ptr !is null)
+        LLValue* ptr = DtoArrayPtr(dval);
+        LLConstant* nul = getNullPtr(ptr->getType());
+        return gIR->ir->CreateICmpNE(ptr, nul, "tmp");
     }
     // delegate
     else if (ty == Tdelegate)
diff --git a/tests/mini/strings2.d b/tests/mini/strings2.d
new file mode 100644
index 00000000..c826acce
--- /dev/null
+++ b/tests/mini/strings2.d
@@ -0,0 +1,5 @@
+void main()
+{
+    char[] s = "";
+    assert(s);
+}