* Implementation of GiNaC's lorentz indices. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
// public
+/** Construct symbolic Lorentz index, using an automatically generated unique name.
+ *
+ * @param cov Index is covariant (contravariant otherwise)
+ * @param oonly Index only lives in orthogonal space
+ * @param dimp Dimension of parallel space
+ * @return newly constructed index */
lorentzidx::lorentzidx(bool cov, bool oonly, unsigned dimp)
: idx(cov), orthogonal_only(oonly), dim_parallel_space(dimp)
{
tinfo_key=TINFO_lorentzidx;
}
+/** Construct symbolic Lorentz index with specified name.
+ *
+ * @param n Symbolic index name
+ * @param cov Index is covariant (contravariant otherwise)
+ * @param oonly Index only lives in orthogonal space
+ * @param dimp Dimension of parallel space
+ * @return newly constructed index */
lorentzidx::lorentzidx(const std::string & n, bool cov, bool oonly, unsigned dimp)
: idx(n,cov), orthogonal_only(oonly), dim_parallel_space(dimp)
{
tinfo_key=TINFO_lorentzidx;
}
+/** Construct symbolic Lorentz index with specified name.
+ *
+ * @param n Symbolic index name
+ * @param cov Index is covariant (contravariant otherwise)
+ * @param oonly Index only lives in orthogonal space
+ * @param dimp Dimension of parallel space
+ * @return newly constructed index */
lorentzidx::lorentzidx(const char * n, bool cov, bool oonly, unsigned dimp)
: idx(n,cov), orthogonal_only(oonly), dim_parallel_space(dimp)
{
tinfo_key=TINFO_lorentzidx;
}
+/** Construct numeric Lorentz index with specified value.
+ *
+ * @param v Numeric index value
+ * @param cov Index is covariant (contravariant otherwise)
+ * @return newly constructed index */
lorentzidx::lorentzidx(unsigned v, bool cov)
: idx(v,cov), orthogonal_only(false), dim_parallel_space(0)
{
{
debugmsg("lorentzidx constructor from archive_node", LOGLEVEL_CONSTRUCT);
n.find_bool("orthogonal_only", orthogonal_only);
- if (orthogonal_only)
- n.find_unsigned("pdim", dim_parallel_space);
+ n.find_unsigned("pdim", dim_parallel_space);
}
/** Unarchive the object. */
{
inherited::archive(n);
n.add_bool("orthogonal_only", orthogonal_only);
- if (orthogonal_only)
- n.add_unsigned("pdim", dim_parallel_space);
+ n.add_unsigned("pdim", dim_parallel_space);
}
//////////
// public
+/** Create anonymous contravariant copy of a symbolic Lorentz index. */
lorentzidx lorentzidx::create_anonymous_representative(void) const
{
GINAC_ASSERT(is_symbolic());
//////////
const lorentzidx some_lorentzidx;
-const type_info & typeid_lorentzidx=typeid(some_lorentzidx);
+const std::type_info & typeid_lorentzidx = typeid(some_lorentzidx);
#ifndef NO_NAMESPACE_GINAC
} // namespace GiNaC