fix hash

1 files changed, 7 insertions, 5 deletions

diff --git a/pyisda/credit_index.pyx b/pyisda/credit_index.pyx
index 44d345e..a809567 100644
--- a/pyisda/credit_index.pyx
+++ b/pyisda/credit_index.pyx
@@ -271,7 +271,7 @@ cdef class CreditIndex(CurveList):
         cdef:
             TCurve* curve = self._curves[0].get()
             size_t size = TCurve_size(curve.fNumItems)
-            size_t buf_size = size + sizeof(size_t) + curve.fNumItems * sizeof(double) + 8
+            size_t buf_size = size + curve.fNumItems * sizeof(double) + 8
             unsigned char* buf = <unsigned char*>malloc(buf_size)
             unsigned char* cursor
             unsigned char* start = buf + size
@@ -283,18 +283,20 @@ cdef class CreditIndex(CurveList):
             cursor = start
             curve = self._curves[p.second].get()
             serialize(curve, buf)
-            p.first.copy(<char*>cursor, p.first.length(), 0)
-            #0 padding
             if p.first.length() < 8:
+                p.first.copy(<char*>cursor, p.first.length(), 0)
+                #0 padding
                 memset(cursor + p.first.length(), 0, 8 - p.first.length())
+            else:
+                p.first.copy(<char*>cursor, 8, 0)
             cursor += 8
             memcpy(cursor, self.recovery_rates[p.second].get(), curve.fNumItems * sizeof(double))
             h ^= Hash64(<char*>buf, buf_size)
-
         free(buf)
         h = Hash64WithSeed(<char*>&self.start_date, sizeof(TDate), h)
+        h = Hash64WithSeed(<char*>&self.base_date, sizeof(TDate), h)
         h = Hash64WithSeed(<char*>self._maturities.data(), sizeof(TDate) * self._maturities.size(), h)
-        h =  Hash64WithSeed(<char*>self._weights.data(), sizeof(double) * self._weights.size(), h)
+        h = Hash64WithSeed(<char*>self._weights.data(), sizeof(double) * self._weights.size(), h)
         return h
 
     #@cython.initializedcheck(False)