Small fixes to avoid compile warnings (-Wall).

[ginac.git] / ginac / tensor.cpp

diff --git a/ginac/tensor.cpp b/ginac/tensor.cpp
index 259af3e45d3a579639f1712e7b5100bf9123d9e7..ce865531b0b66405a9607f2d7588d2466254b1f8 100644 (file)
--- a/ginac/tensor.cpp
+++ b/ginac/tensor.cpp
@@ -364,13 +364,17 @@ ex tensepsilon::eval_indexed(const basic & i) const
                if (minkowski) {
                        for (size_t j=1; j<i.nops(); j++) {
                                const ex & x = i.op(j);
-                               if (!is_a<varidx>(x))
+                               if (!is_a<varidx>(x)) {
                                        throw(std::runtime_error("indices of epsilon tensor in Minkowski space must be of type varidx"));
-                               if (ex_to<varidx>(x).is_covariant())
-                                       if (ex_to<idx>(x).get_value().is_zero())
+                               }
+                               if (ex_to<varidx>(x).is_covariant()) {
+                                       if (ex_to<idx>(x).get_value().is_zero()) {
                                                sign = (pos_sig ? -sign : sign);
-                                       else
+                                       }
+                                       else {
                                                sign = (pos_sig ? sign : -sign);
+                                       }
+                               }
                        }
                }