From d2b31525a24090681e0550ee9c07fb97bbb90ac4 Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Thu, 5 Mar 1998 20:34:15 +0000
Subject: [PATCH] [project @ 1998-03-05 20:34:11 by sof] Exercise defaulting
 of _ccall_ results (bot not args) to ()

---
 ghc/tests/ccall/should_compile/cc002.hs  |    9 +++++++++
 ghc/tests/ccall/should_fail/cc001.hs     |    5 +++++
 ghc/tests/ccall/should_fail/cc001.stderr |    7 +++++++
 3 files changed, 21 insertions(+)
 create mode 100644 ghc/tests/ccall/should_compile/cc002.hs
 create mode 100644 ghc/tests/ccall/should_fail/cc001.hs
 create mode 100644 ghc/tests/ccall/should_fail/cc001.stderr

diff --git a/ghc/tests/ccall/should_compile/cc002.hs b/ghc/tests/ccall/should_compile/cc002.hs
new file mode 100644
index 0000000..d3ed1f1
--- /dev/null
+++ b/ghc/tests/ccall/should_compile/cc002.hs
@@ -0,0 +1,9 @@
+--!!! cc002 -- ccall with ambiguous result (should be defaulted to ())
+module ShouldCompile where
+
+a :: IO ()
+a = do
+ _ccall_ a
+ return ()
+
+	
diff --git a/ghc/tests/ccall/should_fail/cc001.hs b/ghc/tests/ccall/should_fail/cc001.hs
new file mode 100644
index 0000000..f0dd58c
--- /dev/null
+++ b/ghc/tests/ccall/should_fail/cc001.hs
@@ -0,0 +1,5 @@
+--!!! cc002 -- ccall with ambiguous argument
+module Test where
+
+f :: IO ()
+f = _ccall_ foo (undefined ())
diff --git a/ghc/tests/ccall/should_fail/cc001.stderr b/ghc/tests/ccall/should_fail/cc001.stderr
new file mode 100644
index 0000000..33177e4
--- /dev/null
+++ b/ghc/tests/ccall/should_fail/cc001.stderr
@@ -0,0 +1,7 @@
+ 
+cc001.hs:5:
+    Cannot resolve the ambiguous context (PrelGHC.CCallable aJC)
+	`PrelGHC.CCallable aJC' arising from an argument in the _ccall_ to `foo', namely `(Prelude.undefined ())' at cc001.hs:5
+
+
+Compilation had errors
-- 
1.7.10.4