+/*
+ * 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 2 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Author: Pierre Habouzit <madcoder@debian.org>
+ */
+
+#ifndef MUTT_LIB_LIB_MEM_H
+#define MUTT_LIB_LIB_MEM_H
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static inline void *xmalloc(ssize_t size) {
+ void *mem;
+
+ if (size <= 0)
+ return NULL;
+
+ mem = calloc(size, 1);
+ if (!mem)
+ abort();
+ return mem;
+}
+
+static inline void *xrealloc(void *mem, ssize_t newsize) {
+ mem = realloc(mem, newsize);
+ if (!mem)
+ abort();
+ return mem;
+}
+
+static inline void *xmemdup(const void *src, ssize_t size) {
+ return memcpy(xmalloc(size), src, size);
+}
+
+static inline void *xmemdupstr(const void *src, ssize_t len) {
+ char *res = xmalloc(len + 1);
+ memcpy(res, src, len);
+ res[len] = '\0';
+ return res;
+}
+
+#define p_new(type, count) ((type *)xmalloc(sizeof(type) * (count)))
+#define p_clear(p, count) ((void)memset((p), 0, sizeof(*(p)) * (count)))
+#define p_dup(p, count) xmemdup((p), sizeof(*(p)) * (count))
+#define p_dupstr(p, len) xmemdupstr((p), (len))
+
+#ifdef __GNUC__
+
+# define p_delete(mem_pp) \
+ ({ \
+ typeof(**(mem_pp)) **__ptr = (mem_pp); \
+ free(*__ptr); \
+ *__ptr = NULL; \
+ })
+
+#else
+
+# define p_delete(mem_p) \
+ do { \
+ void *__ptr = (mem_p); \
+ free(*__ptr); \
+ *(void **)__ptr = NULL; \
+ } while (0)
+
+#endif
+
+static inline void xmemfree(void **ptr) {
+ p_delete(ptr);
+}
+
+#endif /* MUTT_LIB_LIB_MEM_H */