New fix for #303

Cython/Compiler/PyrexTypes.py

@@ -170,6 +170,19 @@ class CTypedefType(BaseType):
         self.typedef_cname = cname
         self.typedef_base_type = base_type
         self.typedef_is_external = is_external
+
+        # Make typecodes in external typedefs use typesize-neutral macros
+        if is_external:
+            typecode = None
+            if base_type.is_int:
+                if base_type.signed == 0:
+                    typecode = "__Pyx_T_UNSIGNED_INT"
+                else:
+                    typecode = "__Pyx_T_SIGNED_INT"
+            elif base_type.is_float and not rank_to_type_name[base_type.rank] == "long double":
+                typecode = "__Pyx_T_FLOATING"
+            if typecode:
+                self.pymemberdef_typecode = "%s(%s)" % (typecode, cname)
     
     def resolve(self):
         return self.typedef_base_type.resolve()
@@ -1726,6 +1739,40 @@ static INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
 #endif
 #endif
 
+
+#if !defined(T_ULONGLONG)
+#define __Pyx_T_UNSIGNED_INT(x) \\
+        ((sizeof(x) == sizeof(unsigned char))  ? T_UBYTE : \\
+        ((sizeof(x) == sizeof(unsigned short)) ? T_USHORT : \\
+        ((sizeof(x) == sizeof(unsigned int))   ? T_UINT : \\
+        ((sizeof(x) == sizeof(unsigned long))  ? T_ULONG : -1))))
+#else
+#define __Pyx_T_UNSIGNED_INT(x) \\
+        ((sizeof(x) == sizeof(unsigned char))  ? T_UBYTE : \\
+        ((sizeof(x) == sizeof(unsigned short)) ? T_USHORT : \\
+        ((sizeof(x) == sizeof(unsigned int))   ? T_UINT : \\
+        ((sizeof(x) == sizeof(unsigned long))  ? T_ULONG : \\
+        ((sizeof(x) == sizeof(unsigned PY_LONG_LONG)) ? T_ULONGLONG : -1)))))
+#endif
+#if !defined(T_LONGLONG)
+#define __Pyx_T_SIGNED_INT(x) \\
+        ((sizeof(x) == sizeof(char))  ? T_BYTE : \\
+        ((sizeof(x) == sizeof(short)) ? T_SHORT : \\
+        ((sizeof(x) == sizeof(int))   ? T_INT : \\
+        ((sizeof(x) == sizeof(long))  ? T_LONG : -1))))
+#else
+#define __Pyx_T_SIGNED_INT(x) \\
+        ((sizeof(x) == sizeof(char))  ? T_BYTE : \\
+        ((sizeof(x) == sizeof(short)) ? T_SHORT : \\
+        ((sizeof(x) == sizeof(int))   ? T_INT : \\
+        ((sizeof(x) == sizeof(long))  ? T_LONG : \\
+        ((sizeof(x) == sizeof(PY_LONG_LONG))   ? T_LONGLONG : -1)))))
+#endif
+
+#define __Pyx_T_FLOATING(x) \\
+        ((sizeof(x) == sizeof(float)) ? T_FLOAT : \\
+        ((sizeof(x) == sizeof(double)) ? T_DOUBLE : -1))
+
 #if !defined(T_SIZET)
 #if !defined(T_ULONGLONG)
 #define T_SIZET \\

tests/run/external_defs.h

 
-
+typedef float FloatTypedef;
 typedef double DoubleTypedef;
+typedef long double LongDoubleTypedef;
+
+typedef char CharTypedef;
+typedef short ShortTypedef;
+typedef int IntTypedef;
+typedef long LongTypedef;
+#if defined(T_LONGLONG)
+typedef PY_LONG_LONG LongLongTypedef;
+#else
+typedef long LongLongTypedef;
+#endif
+
+typedef unsigned char UCharTypedef;
+typedef unsigned short UShortTypedef;
+typedef unsigned int UIntTypedef;
+typedef unsigned long ULongTypedef;
+#if defined(T_LONGLONG)
+typedef unsigned PY_LONG_LONG ULongLongTypedef;
+#else
+typedef unsigned long ULongLongTypedef;
+#endif

tests/run/typedfieldbug_T303.pyx

 """
 >>> f()
-42.0 42.0 42.0
+42.0
+42.0
+>>> global_vars(12.0)
+12.0 12.0
 >>> readonly()
 Traceback (most recent call last):
     ...
-AttributeError: attribute 'var_nf' of 'typedfieldbug_T303.MyClass' objects is not writable
+TypeError: readonly attribute
+>>> longdouble_access()
+Traceback (most recent call last):
+    ...
+SystemError: bad memberdescr type
+
 """
 
 cdef extern from "external_defs.h":
     ctypedef float DoubleTypedef
+    ctypedef float LongDoubleTypedef
+
+cdef public DoubleTypedef global_tdef
+cdef public double global_double
 
 cdef class MyClass:
     cdef readonly:
-        double var_d
-        DoubleTypedef var_nf
-    cdef public:
-        DoubleTypedef var_mutable
+        double actual_double
+        DoubleTypedef float_isreally_double
+        LongDoubleTypedef float_isreally_longdouble
+        
     def __init__(self):
-        self.var_d = 42.0
-        self.var_nf = 42.0
-        self.var_mutable = 1
+        self.actual_double = 42.0
+        self.float_isreally_double = 42.0
+        self.float_isreally_longdouble = 42.0
+
+def global_vars(x):
+    global global_tdef, global_double
+    global_tdef = x
+    global_double = x
+    print global_tdef, global_double
 
 def f():
     c = MyClass()
-    c.var_mutable = 42.0
-    print c.var_d, c.var_nf, c.var_mutable
+    print c.actual_double
+    print c.float_isreally_double
+
+def longdouble_access():
+    c = MyClass()
+    print c.float_isreally_longdouble
+
 
 def readonly():
     c = MyClass()
-    c.var_nf = 3
+    c.actual_double = 3
+