calchash(): use type_info::name() instead of tinfo().

[ginac.git] / ginac / idx.cpp

diff --git a/ginac/idx.cpp b/ginac/idx.cpp
index c1412b9de73ff8bcfe5c43e7d679e7c4d3757935..174f95f0f311af7e096bba61402d0083016c7b0e 100644 (file)
--- a/ginac/idx.cpp
+++ b/ginac/idx.cpp
@@ -352,7 +352,8 @@ unsigned idx::calchash() const
        // hash keys. That is, the hash values must not depend on the index
        // dimensions or other attributes (variance etc.).
        // The compare_same_type() methods will take care of the rest.
-       unsigned v = golden_ratio_hash((p_int)tinfo());
+       const void* this_tinfo = (const void*)(typeid(*this).name());
+       unsigned v = golden_ratio_hash((p_int)this_tinfo);
        v = rotate_left(v);
        v ^= value.gethash();
 
@@ -504,7 +505,7 @@ ex spinidx::toggle_variance_dot() const
 bool is_dummy_pair(const idx & i1, const idx & i2)
 {
        // The indices must be of exactly the same type
-       if (i1.tinfo() != i2.tinfo())
+       if (typeid(i1) != typeid(i2))
                return false;
 
        // Same type, let the indices decide whether they are paired