- added idx::replace_dim() and idx::minimal_dim()

[ginac.git] / ginac / idx.h

diff --git a/ginac/idx.h b/ginac/idx.h
index b648c62ac74357466244639940dbfd87fcd7a942..0b31696c772840c347aa0fad1aa9e71099de93c7 100644 (file)
--- a/ginac/idx.h
+++ b/ginac/idx.h
@@ -85,6 +85,13 @@ public:
        /** Check whether the dimension is symbolic. */
        bool is_dim_symbolic(void) const {return !is_exactly_a<numeric>(dim);}
 
+       /** Make a new index with the same value but a different dimension. */
+       ex replace_dim(const ex & new_dim) const;
+
+       /** Return the minimum of the dimensions of this and another index.
+        *  If this is undecidable, throw an exception. */
+       ex minimal_dim(const idx & other) const;
+
 protected:
        ex value; /**< Expression that constitutes the index (numeric or symbolic name) */
        ex dim;   /**< Dimension of space (can be symbolic or numeric) */