* Implementation of GiNaC's color (SU(3) Lie algebra) objects. */
/*
- * GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2019 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
// T.a S T.a = 1/2 Tr(S) - 1/6 S
} else {
- exvector::iterator it = self + 1;
+ auto it = self + 1;
while (it != other) {
if (!is_a<color>(*it)) {
return false;
&& ex_to<indexed>(*self).has_dummy_index_for(other[1].op(1))) {
exvector self_indices = ex_to<indexed>(*self).get_indices();
- exvector dummy_indices;
- dummy_indices.push_back(other[0].op(1));
- dummy_indices.push_back(other[1].op(1));
+ exvector dummy_indices = {other[0].op(1), other[1].op(1)};
int sig;
ex a = permute_free_index_to_front(self_indices, dummy_indices, sig);
*self = numeric(5, 6);
&& ex_to<indexed>(*self).has_dummy_index_for(other[1].op(1))) {
exvector self_indices = ex_to<indexed>(*self).get_indices();
- exvector dummy_indices;
- dummy_indices.push_back(other[0].op(1));
- dummy_indices.push_back(other[1].op(1));
+ exvector dummy_indices = {other[0].op(1), other[1].op(1)};
int sig;
ex a = permute_free_index_to_front(self_indices, dummy_indices, sig);
*self = numeric(3, 2) * sig * I;
ex color_ONE(unsigned char rl)
{
- static ex ONE = (new su3one)->setflag(status_flags::dynallocated);
+ static ex ONE = dynallocate<su3one>();
return color(ONE, rl);
}
ex color_T(const ex & a, unsigned char rl)
{
- static ex t = (new su3t)->setflag(status_flags::dynallocated);
+ static ex t = dynallocate<su3t>();
if (!is_a<idx>(a))
throw(std::invalid_argument("indices of color_T must be of type idx"));
ex color_f(const ex & a, const ex & b, const ex & c)
{
- static ex f = (new su3f)->setflag(status_flags::dynallocated);
+ static ex f = dynallocate<su3f>();
if (!is_a<idx>(a) || !is_a<idx>(b) || !is_a<idx>(c))
throw(std::invalid_argument("indices of color_f must be of type idx"));
ex color_d(const ex & a, const ex & b, const ex & c)
{
- static ex d = (new su3d)->setflag(status_flags::dynallocated);
+ static ex d = dynallocate<su3d>();
if (!is_a<idx>(a) || !is_a<idx>(b) || !is_a<idx>(c))
throw(std::invalid_argument("indices of color_d must be of type idx"));
// + 1/2 h_a(n-1)_an_k Tr T_a1 .. T_a(n-2) T_k
const ex &last_index = e.op(num - 1).op(1);
const ex &next_to_last_index = e.op(num - 2).op(1);
- idx summation_index((new symbol)->setflag(status_flags::dynallocated), 8);
+ idx summation_index(dynallocate<symbol>(), 8);
exvector v1;
v1.reserve(num - 2);