2005-11-21 Joel Sherrill <joel.sherrill@oarcorp.com>

[pf3gnuchains/gcc-fork.git] / gcc / lambda.h

diff --git a/gcc/lambda.h b/gcc/lambda.h
index d3fdc99..418cb04 100644 (file)
--- a/gcc/lambda.h
+++ b/gcc/lambda.h
@@ -1,5 +1,5 @@
 /* Lambda matrix and vector interface.
-   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
    Contributed by Daniel Berlin <dberlin@dberlin.org>
 
 This file is part of GCC.
@@ -16,8 +16,8 @@ for more details.
 
 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
 
 #ifndef LAMBDA_H
 #define LAMBDA_H
@@ -30,6 +30,9 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
    integers.  */
 typedef int *lambda_vector;
 
+DEF_VEC_P(lambda_vector);
+DEF_VEC_ALLOC_P(lambda_vector,heap);
+
 /* An integer matrix.  A matrix consists of m vectors of length n (IE
    all vectors are the same length).  */
 typedef lambda_vector *lambda_matrix;
@@ -376,5 +379,26 @@ print_lambda_vector (FILE * outfile, lambda_vector vector, int n)
     fprintf (outfile, "%3d ", vector[i]);
   fprintf (outfile, "\n");
 }
+
+/* Returns true when the vector V is lexicographically positive, in
+   other words, when the first nonzero element is positive.  */
+
+static inline bool
+lambda_vector_lexico_pos (lambda_vector v, 
+                         unsigned n)
+{
+  unsigned i;
+  for (i = 0; i < n; i++)
+    {
+      if (v[i] == 0)
+       continue;
+      if (v[i] < 0)
+       return false;
+      if (v[i] > 0)
+       return true;
+    }
+  return true;
+}
+
 #endif /* LAMBDA_H  */