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-rw-r--r--testsuite/tests/ffi/should_run/ffi003.hs8
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diff --git a/testsuite/tests/ffi/should_run/ffi003.hs b/testsuite/tests/ffi/should_run/ffi003.hs
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+++ b/testsuite/tests/ffi/should_run/ffi003.hs
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+-- !!! Test passing doubles to a ccall
+
+import Foreign.C
+
+foreign import ccall unsafe "math.h sin"
+ c_sin :: CDouble -> IO CDouble
+
+main = c_sin 1.0 >>= print