+void *
+xrealloc(void *ptr, size_t size)
+{
+ if((ptr = realloc(ptr, size)) == NULL)
+ (*xmalloc_handle_error)(errno);
+
+ return ptr;
+}
+
+void *
+xrealloc_inc(void *ptr, size_t size, size_t inc)
+{
+ size_t total_size = size + inc;
+
+ /*
+ * check if the calculation overflowed
+ */
+ if(total_size < size) {
+ (*xmalloc_handle_error)(EINVAL);
+ return NULL;
+ }
+
+ if((ptr = realloc(ptr, total_size)) == NULL)
+ (*xmalloc_handle_error)(errno);
+
+ return ptr;
+}
+
+void
+xfree(void *ptr)
+{
+ free(ptr);
+ ptr = NULL;
+}
+