Changeset 40971d in git for libpolys/coeffs/modulop.h

Timestamp:

Nov 22, 2013, 11:58:33 AM (9 years ago)

Author:

Hans Schoenemann <hannes@…>

Branches:

(u'jengelh-datetime', 'ceac47cbc86fe4a15902392bdbb9bd2ae0ea02c6')(u'spielwiese', 'a800fe4b3e9d37a38c5a10cc0ae9dfa0c15a4ee6')

Children:

0615d9680ee7c46dfdc3c107760b2f351a130c31

Parents:

fc34c44ed7973f5f200362cfa8f150bc31c8387b

Message:

chg: simplified npNegM

File:

• libpolys/coeffs/modulop.h (modified) (2 diffs)

libpolys/coeffs/modulop.h

@@ -125 +125 @@
                        r->ch-(long)b+(long)a : (long)a-(long)b);
 }
-
-static inline number npNegM(number a, const coeffs r)
-{
-  return (number)((long)(r->ch)-(long)(a));
-}
-
 #else
 static inline number npAddM(number a, number b, const coeffs r)
@@ -153 +147 @@
    return (number)res;
 }
+#endif
 
-
-static inline number npNegM(number b, const coeffs r)
+static inline number npNegM(number a, const coeffs r)
 {
-   long res =  - (long)b;
-#if SIZEOF_LONG == 8
-   res += (res >> 63) & r->ch;
-#else
-   res += (res >> 31) & r->ch;
-#endif
-   return (number)res;
+  return (number)((long)(r->ch)-(long)(a));
 }
-
-#endif
 
 static inline BOOLEAN npIsZeroM (number  a, const coeffs)