Changeset b719a3 in git for Singular/ring.cc

Timestamp:

Jul 8, 1999, 3:38:44 PM (24 years ago)

Author:

Hans Schönemann <hannes@…>

Branches:

(u'spielwiese', '8e0ad00ce244dfd0756200662572aef8402f13d5')

Children:

2082b6153c70d5e5b989c2d74d656bd2e080a3c7

Parents:

da408fe6b31ced4ed0febcceb258e7a27064215a

Message:

*hannes: ring fixes: real + param.


git-svn-id: file:///usr/local/Singular/svn/trunk@3248 2c84dea3-7e68-4137-9b89-c4e89433aadc

File:

• Singular/ring.cc (modified) (4 diffs)

Singular/ring.cc

@@ -2 +2 @@
 *  Computer Algebra System SINGULAR     *
 ****************************************/
-/* $Id: ring.cc,v 1.56 1999-07-01 16:40:42 Singular Exp $ */
+/* $Id: ring.cc,v 1.57 1999-07-08 13:38:44 Singular Exp $ */
 
 /*
@@ -526 +526 @@
 
   /* characteristic -----------------------------------------------*/
-  /* input: 0 ch=0 : Q     parameter=NULL    ffChar=FALSE
+  /* input: 0 ch=0 : Q     parameter=NULL    ffChar=FALSE   ch_flags
    *         0    1 : Q(a,...)        *names         FALSE
-   *         0   -1 : R               NULL           FALSE
-   *         0   -1 : C               *names         FALSE
+   *         0   -1 : R               NULL           FALSE  0
+   *         0   -1 : R               NULL           FALSE  prec. >6
+   *         0   -1 : C               *names         FALSE  prec. 0..?
    *         p    p : Fp              NULL           FALSE
    *         p   -p : Fp(a)           *names         FALSE
@@ -591 +592 @@
     goto rInitError;
   }
+  /* post-processing of field description */
+  // we have short reals, but no short complex
+  if ((R->ch == - 1)
+  && (R->parameter !=NULL)
+  && (R->ch_flags < SHORT_REAL_LENGTH))
+    R->ch_flags = SHORT_REAL_LENGTH;
 
   /* names and number of variables-------------------------------------*/
@@ -733 +740 @@
       }
       PrintS("\n//   minpoly        : ");
-      if (r->minpoly==NULL)
+      if ( rField_is_long_C(r) )
+      {
+        // i^2+1:
+        Print("(%s^2+1)\n",r->parameter[0]);
+      }
+      else if (r->minpoly==NULL)
       {
         PrintS("0\n");