GPLize project

Finally deciding to move things into a proper license; which I can do
since I've never accepted (or had :( ) a pull request from another
person

22 files changed, 374 insertions, 0 deletions

diff --git a/src/main/java/bjc/funcdata/CList.java b/src/main/java/bjc/funcdata/CList.java
index b9ee10e..4995b61 100644
--- a/src/main/java/bjc/funcdata/CList.java
+++ b/src/main/java/bjc/funcdata/CList.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.function.UnaryOperator;
diff --git a/src/main/java/bjc/funcdata/CListLike.java b/src/main/java/bjc/funcdata/CListLike.java
index ba17456..9742fc5 100644
--- a/src/main/java/bjc/funcdata/CListLike.java
+++ b/src/main/java/bjc/funcdata/CListLike.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 public interface CListLike<T> {
diff --git a/src/main/java/bjc/funcdata/CListStructure.java b/src/main/java/bjc/funcdata/CListStructure.java
index 1809273..390a47e 100644
--- a/src/main/java/bjc/funcdata/CListStructure.java
+++ b/src/main/java/bjc/funcdata/CListStructure.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import bjc.data.Either;
diff --git a/src/main/java/bjc/funcdata/ExtendedMap.java b/src/main/java/bjc/funcdata/ExtendedMap.java
index 379ff65..4bee343 100644
--- a/src/main/java/bjc/funcdata/ExtendedMap.java
+++ b/src/main/java/bjc/funcdata/ExtendedMap.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.*;
diff --git a/src/main/java/bjc/funcdata/Freezable.java b/src/main/java/bjc/funcdata/Freezable.java
index 8bb037c..c337509 100644
--- a/src/main/java/bjc/funcdata/Freezable.java
+++ b/src/main/java/bjc/funcdata/Freezable.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 /**
diff --git a/src/main/java/bjc/funcdata/FunctionalList.java b/src/main/java/bjc/funcdata/FunctionalList.java
index c9c3a9f..ae7ae3a 100644
--- a/src/main/java/bjc/funcdata/FunctionalList.java
+++ b/src/main/java/bjc/funcdata/FunctionalList.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.ArrayList;
diff --git a/src/main/java/bjc/funcdata/FunctionalMap.java b/src/main/java/bjc/funcdata/FunctionalMap.java
index 3427a91..33a97e6 100644
--- a/src/main/java/bjc/funcdata/FunctionalMap.java
+++ b/src/main/java/bjc/funcdata/FunctionalMap.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.*;
diff --git a/src/main/java/bjc/funcdata/FunctionalStringTokenizer.java b/src/main/java/bjc/funcdata/FunctionalStringTokenizer.java
index 3344e05..211be85 100644
--- a/src/main/java/bjc/funcdata/FunctionalStringTokenizer.java
+++ b/src/main/java/bjc/funcdata/FunctionalStringTokenizer.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.StringTokenizer;
diff --git a/src/main/java/bjc/funcdata/ListEx.java b/src/main/java/bjc/funcdata/ListEx.java
index 164a71d..fd947cf 100644
--- a/src/main/java/bjc/funcdata/ListEx.java
+++ b/src/main/java/bjc/funcdata/ListEx.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.Comparator;
diff --git a/src/main/java/bjc/funcdata/MapEx.java b/src/main/java/bjc/funcdata/MapEx.java
index a7af4c5..1dad1dc 100644
--- a/src/main/java/bjc/funcdata/MapEx.java
+++ b/src/main/java/bjc/funcdata/MapEx.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.*;
diff --git a/src/main/java/bjc/funcdata/ObjectFrozen.java b/src/main/java/bjc/funcdata/ObjectFrozen.java
index a9f58b8..2951ec3 100644
--- a/src/main/java/bjc/funcdata/ObjectFrozen.java
+++ b/src/main/java/bjc/funcdata/ObjectFrozen.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 /**
diff --git a/src/main/java/bjc/funcdata/SentryList.java b/src/main/java/bjc/funcdata/SentryList.java
index b0554f5..e890370 100644
--- a/src/main/java/bjc/funcdata/SentryList.java
+++ b/src/main/java/bjc/funcdata/SentryList.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.List;
diff --git a/src/main/java/bjc/funcdata/TransformedValueMap.java b/src/main/java/bjc/funcdata/TransformedValueMap.java
index 643f610..57fe155 100644
--- a/src/main/java/bjc/funcdata/TransformedValueMap.java
+++ b/src/main/java/bjc/funcdata/TransformedValueMap.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata;
 
 import java.util.*;
diff --git a/src/main/java/bjc/funcdata/bst/BinarySearchTree.java b/src/main/java/bjc/funcdata/bst/BinarySearchTree.java
index 99b67cd..7cec49a 100644
--- a/src/main/java/bjc/funcdata/bst/BinarySearchTree.java
+++ b/src/main/java/bjc/funcdata/bst/BinarySearchTree.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.bst;
 
 import java.util.ArrayList;
diff --git a/src/main/java/bjc/funcdata/bst/BinarySearchTreeLeaf.java b/src/main/java/bjc/funcdata/bst/BinarySearchTreeLeaf.java
index 9532555..fe9ad00 100644
--- a/src/main/java/bjc/funcdata/bst/BinarySearchTreeLeaf.java
+++ b/src/main/java/bjc/funcdata/bst/BinarySearchTreeLeaf.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.bst;
 
 import java.util.Comparator;
diff --git a/src/main/java/bjc/funcdata/bst/BinarySearchTreeNode.java b/src/main/java/bjc/funcdata/bst/BinarySearchTreeNode.java
index 0eef92a..12ed209 100644
--- a/src/main/java/bjc/funcdata/bst/BinarySearchTreeNode.java
+++ b/src/main/java/bjc/funcdata/bst/BinarySearchTreeNode.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.bst;
 
 import static bjc.funcdata.bst.DirectedWalkFunction.DirectedWalkResult.FAILURE;
diff --git a/src/main/java/bjc/funcdata/bst/DirectedWalkFunction.java b/src/main/java/bjc/funcdata/bst/DirectedWalkFunction.java
index 4f64339..b0cb76f 100644
--- a/src/main/java/bjc/funcdata/bst/DirectedWalkFunction.java
+++ b/src/main/java/bjc/funcdata/bst/DirectedWalkFunction.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.bst;
 
 /**
diff --git a/src/main/java/bjc/funcdata/bst/TreeLinearizationMethod.java b/src/main/java/bjc/funcdata/bst/TreeLinearizationMethod.java
index 666834f..973a8dd 100644
--- a/src/main/java/bjc/funcdata/bst/TreeLinearizationMethod.java
+++ b/src/main/java/bjc/funcdata/bst/TreeLinearizationMethod.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.bst;
 
 /**
diff --git a/src/main/java/bjc/funcdata/bst/TreePart.java b/src/main/java/bjc/funcdata/bst/TreePart.java
index b451463..999b5ca 100644
--- a/src/main/java/bjc/funcdata/bst/TreePart.java
+++ b/src/main/java/bjc/funcdata/bst/TreePart.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.bst;
 
 import java.util.Comparator;
diff --git a/src/main/java/bjc/funcdata/theory/Bifunctor.java b/src/main/java/bjc/funcdata/theory/Bifunctor.java
index 72fccff..164a832 100644
--- a/src/main/java/bjc/funcdata/theory/Bifunctor.java
+++ b/src/main/java/bjc/funcdata/theory/Bifunctor.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.theory;
 
 import java.util.function.Function;
diff --git a/src/main/java/bjc/funcdata/theory/Category.java b/src/main/java/bjc/funcdata/theory/Category.java
index 730465d..b5d8ee4 100644
--- a/src/main/java/bjc/funcdata/theory/Category.java
+++ b/src/main/java/bjc/funcdata/theory/Category.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.theory;
 
 import java.util.Set;
diff --git a/src/main/java/bjc/funcdata/theory/Functor.java b/src/main/java/bjc/funcdata/theory/Functor.java
index 85a1ec7..7007325 100644
--- a/src/main/java/bjc/funcdata/theory/Functor.java
+++ b/src/main/java/bjc/funcdata/theory/Functor.java
@@ -1,3 +1,20 @@
+/* 
+ * esodata - data structures and other things, of varying utility
+ * Copyright 2022, Ben Culkin
+ * 
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *   
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 package bjc.funcdata.theory;
 
 import java.util.function.Function;