From 181d8ded82d49d0133d9d6fd1631d9816c970bfa Mon Sep 17 00:00:00 2001
From: Matthias Benkard <code@mail.matthias.benkard.de>
Date: Sat, 26 Jan 2008 12:06:34 +0100
Subject: Import libffi from PyObjC 1.3.7.

darcs-hash:129bccb59266f997deac9b0353aea2d2d4049f92
---
 libffi/testsuite/libffi.call/float2.c | 60 +++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 libffi/testsuite/libffi.call/float2.c

(limited to 'libffi/testsuite/libffi.call/float2.c')

diff --git a/libffi/testsuite/libffi.call/float2.c b/libffi/testsuite/libffi.call/float2.c
new file mode 100644
index 0000000..4de41d3
--- /dev/null
+++ b/libffi/testsuite/libffi.call/float2.c
@@ -0,0 +1,60 @@
+/* Area:	ffi_call
+   Purpose:	Check return value long double.
+   Limitations:	none.
+   PR:		none.
+   Originator:	From the original ffitest.c  */
+
+/* { dg-do run } */
+/* { dg-options -mlong-double-128 { target powerpc64*-*-* } } */
+
+#include "ffitest.h"
+#include "float.h"
+
+static long double ldblit(float f)
+{
+  return (long double) (((long double) f)/ (long double) 3.0);
+}
+
+int main (void)
+{
+  ffi_cif cif;
+  ffi_type *args[MAX_ARGS];
+  void *values[MAX_ARGS];
+  float f;
+  long double ld;
+
+  args[0] = &ffi_type_float;
+  values[0] = &f;
+
+  /* Initialize the cif */
+  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
+		     &ffi_type_longdouble, args) == FFI_OK);
+
+  f = 3.14159;
+
+#if 1
+  /* This is ifdef'd out for now. long double support under SunOS/gcc
+     is pretty much non-existent.  You'll get the odd bus error in library
+     routines like printf().  */
+  printf ("%Lf\n", ldblit(f));
+#endif
+  ld = 666;
+  ffi_call(&cif, FFI_FN(ldblit), &ld, values);
+
+#if 1
+  /* This is ifdef'd out for now. long double support under SunOS/gcc
+     is pretty much non-existent.  You'll get the odd bus error in library
+     routines like printf().  */
+  printf ("%Lf, %Lf, %Lf, %Lf\n", ld, ldblit(f), ld - ldblit(f), LDBL_EPSILON);
+#endif
+
+  /* These are not always the same!! Check for a reasonable delta */
+  /*@-realcompare@*/
+  if (ld - ldblit(f) < LDBL_EPSILON)
+    /*@=realcompare@*/
+    puts("long double return value tests ok!");
+  else
+    CHECK(0);
+
+  exit(0);
+}
-- 
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