Author: Armin Rigo <[email protected]>
Branch: ffi-backend
Changeset: r55782:aae0f822a3aa
Date: 2012-06-23 16:12 +0200
http://bitbucket.org/pypy/pypy/changeset/aae0f822a3aa/
Log: Overflow.
diff --git a/pypy/module/_ffi_backend/ctypeobj.py
b/pypy/module/_ffi_backend/ctypeobj.py
--- a/pypy/module/_ffi_backend/ctypeobj.py
+++ b/pypy/module/_ffi_backend/ctypeobj.py
@@ -263,6 +263,12 @@
w_cdata.write_raw_integer_data(value)
return w_cdata
+ def _overflow(self, w_ob):
+ space = self.space
+ s = space.str_w(space.str(w_ob))
+ raise operationerrfmt(space.w_OverflowError,
+ "integer %s does not fit '%s'", s, self.name)
+
class W_CTypePrimitiveChar(W_CTypePrimitive):
@@ -319,8 +325,12 @@
def convert_from_object(self, cdata, w_ob):
value = misc.as_long_long(self.space, w_ob)
# xxx enums
+ if self.value_fits_long:
+ vmin = (-1) << (self.size * 8 - 1)
+ vmax = ~vmin
+ if not (vmin <= value <= vmax):
+ self._overflow(w_ob)
misc.write_raw_integer_data(cdata, value, self.size)
- # xxx overflow
class W_CTypePrimitiveUnsigned(W_CTypePrimitive):
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