add pgn-extract 22.11

pgn-extract/mymalloc.c

@@ -0,0 +1,52 @@
+/*
+ *  This file is part of pgn-extract: a Portable Game Notation (PGN) extractor.
+ *  Copyright (C) 1994-2022 David J. Barnes
+ *
+ *  pgn-extract 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.
+ *
+ *  pgn-extract 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 pgn-extract. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  David J. Barnes may be contacted as d.j.barnes@kent.ac.uk
+ *  https://www.cs.kent.ac.uk/people/staff/djb/
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "mymalloc.h"
+
+/* Allocate the required space or abort the program. */
+void *
+malloc_or_die(size_t nbytes)
+{
+    void *result;
+
+    result = malloc(nbytes);
+    if (result == NULL) {
+        perror("malloc or die");
+        abort();
+    }
+    return result;
+}
+
+/* Allocate the required space or abort the program. */
+void *
+realloc_or_die(void *space, size_t nbytes)
+{
+    void *result;
+
+    result = realloc(space, nbytes);
+    if (result == NULL) {
+        perror("realloc or die");
+        abort();
+    }
+    return result;
+}