Use realloc for everything (Issue #300)

CHANGES.md

@@ -1,16 +1,18 @@
 # Changes in Mini-XML 4.0.0
 
-- Now require C99 support.
+- Now require C99 support (Issue #300)
 - Now install as "libmxml4" to support installing both Mini-XML 3.x and 4.x at
   the same time (use `--disable-libmxml4-prefix` configure option to disable)
 - Added `mxmlLoadIO` and `mxmlSaveIO` functions to load and save XML via
   callbacks (Issue #98)
 - Added new `MXML_TYPE_CDATA`, `MXML_TYPE_COMMENT`, `MXML_TYPE_DECLARATION`, and
   `MXML_TYPE_DIRECTIVE` node types (Issue #250)
+- Added `mxmlLoadFilename` and `mxmlSaveFilename` functions (Issue #291)
 - Renamed `mxml_type_t` enumerations to `MXML_TYPE_xxx` (Issue #251)
 - Updated APIs to use bool type instead of an int representing a boolean value.
 - Updated the SAX callback to return a `bool` value to control processing
   (Issue #51)
+- Updated the load and save callbacks to include a context pointer (Issue #106)
 
 
 # Changes in Mini-XML 3.3.2

mxml-attr.c

@@ -246,9 +246,7 @@ mxml_set_attr(mxml_node_t *node,	// I - Element node
   }
 
   // Add a new attribute...
-  attr = realloc(node->value.element.attrs, (node->value.element.num_attrs + 1) * sizeof(_mxml_attr_t));
-
-  if (!attr)
+  if ((attr = realloc(node->value.element.attrs, (node->value.element.num_attrs + 1) * sizeof(_mxml_attr_t))) == NULL)
   {
     _mxml_error("Unable to allocate memory for attribute '%s' in element %s.", name, node->value.element.name);
     return (false);

mxml-index.c

@@ -245,12 +245,7 @@ mxmlIndexNew(mxml_node_t *node,		// I - XML node tree
   {
     if (ind->num_nodes >= ind->alloc_nodes)
     {
-      if (!ind->alloc_nodes)
-        temp = malloc(64 * sizeof(mxml_node_t *));
-      else
-        temp = realloc(ind->nodes, (ind->alloc_nodes + 64) * sizeof(mxml_node_t *));
-
-      if (!temp)
+      if ((temp = realloc(ind->nodes, (ind->alloc_nodes + 64) * sizeof(mxml_node_t *))) == NULL)
       {
         // Unable to allocate memory for the index, so abort...
         _mxml_error("Unable to allocate memory for index nodes.");

mxml.h

@@ -17,7 +17,6 @@
 #  include <string.h>
 #  include <ctype.h>
 #  include <errno.h>
-#  include <sys/types.h>
 #  include <limits.h>
 #  if defined(_WIN32) && !defined(__CUPS_SSIZE_T_DEFINED)
 #    define __CUPS_SSIZE_T_DEFINED