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-rw-r--r--libffi/testsuite/libffi.call/float1.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/libffi/testsuite/libffi.call/float1.c b/libffi/testsuite/libffi.call/float1.c
new file mode 100644
index 0000000..94636a2
--- /dev/null
+++ b/libffi/testsuite/libffi.call/float1.c
@@ -0,0 +1,42 @@
+/* Area: ffi_call
+ Purpose: Check return value double.
+ Limitations: none.
+ PR: none.
+ Originator: From the original ffitest.c */
+
+/* { dg-do run } */
+#include "ffitest.h"
+#include "float.h"
+
+static double dblit(float f)
+{
+ return f/3.0;
+}
+
+int main (void)
+{
+ ffi_cif cif;
+ ffi_type *args[MAX_ARGS];
+ void *values[MAX_ARGS];
+ float f;
+ double d;
+
+
+ args[0] = &ffi_type_float;
+ values[0] = &f;
+
+ /* Initialize the cif */
+ CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
+ &ffi_type_double, args) == FFI_OK);
+
+ f = 3.14159;
+
+ ffi_call(&cif, FFI_FN(dblit), &d, values);
+
+ /* These are not always the same!! Check for a reasonable delta */
+
+ CHECK(d - dblit(f) < DBL_EPSILON);
+
+ exit(0);
+
+}