[pypy-svn] r45072 - in pypy/dist/pypy/rpython/lltypesystem: . test

[arigo at codespeak.net]

Author: arigo
Date: Sat Jul 14 14:42:48 2007
New Revision: 45072

Modified:
   pypy/dist/pypy/rpython/lltypesystem/ll2ctypes.py
   pypy/dist/pypy/rpython/lltypesystem/test/test_ll2ctypes.py
Log:
(lac, arigo)
Support for floats.  Nothing to do, really.


Modified: pypy/dist/pypy/rpython/lltypesystem/ll2ctypes.py
==============================================================================
--- pypy/dist/pypy/rpython/lltypesystem/ll2ctypes.py	(original)
+++ pypy/dist/pypy/rpython/lltypesystem/ll2ctypes.py	Sat Jul 14 14:42:48 2007
@@ -12,6 +12,7 @@
 _ctypes_cache = {
     lltype.Signed: ctypes.c_long,
     lltype.Char:   ctypes.c_ubyte,
+    lltype.Float:  ctypes.c_double,
     }
 
 def build_ctypes_struct(S, max_n=None):

Modified: pypy/dist/pypy/rpython/lltypesystem/test/test_ll2ctypes.py
==============================================================================
--- pypy/dist/pypy/rpython/lltypesystem/test/test_ll2ctypes.py	(original)
+++ pypy/dist/pypy/rpython/lltypesystem/test/test_ll2ctypes.py	Sat Jul 14 14:42:48 2007
@@ -172,3 +172,15 @@
     assert res[2] == 'd'
     assert res[3] == '\x00'
     rffi.free_charp(s)
+
+def test_frexp():
+    A = lltype.FixedSizeArray(lltype.Signed, 1)
+    frexp = rffi.llexternal('frexp', [lltype.Float, lltype.Ptr(A)],
+                            lltype.Float,   # lltype.Float == C "double" :-/
+                            includes=['math.h'],
+                            libraries=['m'])
+    p = lltype.malloc(A, flavor='raw')
+    res = frexp(2.5, p)
+    assert res == 0.625
+    assert p[0] == 2
+    lltype.free(p, flavor='raw')