Changeset f0af17 in git for libpolys/coeffs

Timestamp:

Apr 12, 2013, 12:29:11 PM (11 years ago)

Author:

Hans Schoenemann <hannes@…>

Branches:

(u'spielwiese', 'fe61d9c35bf7c61f2b6cbf1b56e25e2f08d536cc')

Children:

80f146cd522414ce52432c92dfa9773f1a0952d4

Parents:

b1d1ab3d52a1e071ff9951a82b411435d01f77b4

Message:

fix: work around aggressive optimizations (syModStd)

File:

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

libpolys/coeffs/modulop.h

@@ -117 +117 @@
 static inline number npAddM(number a, number b, const coeffs r)
 {
-  long R = (long)a + (long)b;
+  unsigned long R = (unsigned long)a + (unsigned long)b;
   return (number)(R >= r->ch ? R - r->ch : R);
 }
@@ -128 +128 @@
 static inline number npAddM(number a, number b, const coeffs r)
 {
-   long res = ((long)a + (long)b);
+   unsigned long res = (long)((unsigned long)a + (unsigned long)b);
    res -= r->ch;
 #if SIZEOF_LONG == 8
-   res += (res >> 63) & r->ch;
+   res += ((long)res >> 63) & r->ch;
 #else
-   res += (res >> 31) & r->ch;
+   res += ((long)res >> 31) & r->ch;
 #endif
    return (number)res;