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addstep, protected cw+wstep

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This commit is contained in:
Zeno Rogue 2021-08-19 01:27:26 +02:00
parent 8b5c0bbe70
commit 49e92f4288
1 changed files with 7 additions and 1 deletions
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8
rulegen.cpp
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@ -123,6 +123,12 @@ EX void ufindc(tcell*& c) {
EX tcell *first_tcell = nullptr; EX tcell *first_tcell = nullptr;
twalker addstep(twalker x) {
x.cpeek();
ufind(x);
return x + wstep;
}
void connect_and_check(twalker p1, twalker p2); void connect_and_check(twalker p1, twalker p2);
void unify(twalker pw1, twalker pw2); void unify(twalker pw1, twalker pw2);
@ -771,7 +777,7 @@ void treewalk(twalker& cw, int delta) {
int d = get_parent_dir(cw.at); int d = get_parent_dir(cw.at);
if(cw.spin == d) cw += wstep; if(cw.spin == d) cw += wstep;
else { else {
auto cw1 = cw+wstep; auto cw1 = addstep(cw);
get_parent_dir(cw1.at); get_parent_dir(cw1.at);
ufind(cw1); ufind(cw1);
if(get_parent_dir(cw1.at) == cw1.spin) cw += wstep; if(get_parent_dir(cw1.at) == cw1.spin) cw += wstep;