Replace 0 with NULL for compact and wchar mode specific code

src/pugixml.cpp

@@ -304,7 +304,7 @@ PUGI_IMPL_NS_BEGIN
  class compact_hash_table
  {
  public:
- compact_hash_table(): _items(0), _capacity(0), _count(0)
+ compact_hash_table(): _items(NULL), _capacity(0), _count(0)
  {
  }
 
@@ -313,19 +313,19 @@ PUGI_IMPL_NS_BEGIN
  if (_items)
  {
  xml_memory::deallocate(_items);
- _items = 0;
+ _items = NULL;
  _capacity = 0;
  _count = 0;
  }
  }
 
  void* find(const void* key)
  {
- if (_capacity == 0) return 0;
+ if (_capacity == 0) return NULL;
 
  item_t* item = get_item(key);
  assert(item);
- assert(item->key == key || (item->key == 0 && item->value == 0));
+ assert(item->key == key || (item->key == NULL && item->value == NULL));
 
  return item->value;
  }
@@ -337,7 +337,7 @@ PUGI_IMPL_NS_BEGIN
  item_t* item = get_item(key);
  assert(item);
 
- if (item->key == 0)
+ if (item->key == NULL)
  {
  _count++;
  item->key = key;
@@ -380,15 +380,15 @@ PUGI_IMPL_NS_BEGIN
  {
  item_t& probe_item = _items[bucket];
 
- if (probe_item.key == key || probe_item.key == 0)
+ if (probe_item.key == key || probe_item.key == NULL)
  return &probe_item;
 
  // hash collision, quadratic probing
  bucket = (bucket + probe + 1) & hashmod;
  }
 
  assert(false && "Hash table is full"); // unreachable
- return 0;
+ return NULL;
  }
 
  static PUGI_IMPL_UNSIGNED_OVERFLOW unsigned int hash(const void* key)
@@ -483,9 +483,9 @@ PUGI_IMPL_NS_BEGIN
  result->freed_size = 0;
 
  #ifdef PUGIXML_COMPACT
- result->compact_string_base = 0;
- result->compact_shared_parent = 0;
- result->compact_page_marker = 0;
+ result->compact_string_base = NULL;
+ result->compact_shared_parent = NULL;
+ result->compact_page_marker = NULL;
  #endif
 
  return result;
@@ -525,7 +525,7 @@ PUGI_IMPL_NS_BEGIN
  xml_allocator(xml_memory_page* root): _root(root), _busy_size(root->busy_size)
  {
  #ifdef PUGIXML_COMPACT
- _hash = 0;
+ _hash = NULL;
  #endif
  }
 
@@ -572,7 +572,7 @@ PUGI_IMPL_NS_BEGIN
  void* allocate_object(size_t size, xml_memory_page*& out_page)
  {
  void* result = allocate_memory(size + sizeof(uint32_t), out_page);
- if (!result) return 0;
+ if (!result) return NULL;
 
  // adjust for marker
  ptrdiff_t offset = static_cast<char*>(result) - reinterpret_cast<char*>(out_page->compact_page_marker);
@@ -628,9 +628,9 @@ PUGI_IMPL_NS_BEGIN
 
  #ifdef PUGIXML_COMPACT
  // reset compact state to maximize efficiency
- page->compact_string_base = 0;
- page->compact_shared_parent = 0;
- page->compact_page_marker = 0;
+ page->compact_string_base = NULL;
+ page->compact_shared_parent = NULL;
+ page->compact_page_marker = NULL;
  #endif
 
  _busy_size = 0;
@@ -874,7 +874,7 @@ PUGI_IMPL_NS_BEGIN
  return compact_get_value<header_offset, T>(this);
  }
  else
- return 0;
+ return NULL;
  }
 
  T* operator->() const
@@ -917,7 +917,7 @@ PUGI_IMPL_NS_BEGIN
  {
  xml_memory_page* page = compact_get_page(this, header_offset);
 
- if (PUGI_IMPL_UNLIKELY(page->compact_shared_parent == 0))
+ if (PUGI_IMPL_UNLIKELY(page->compact_shared_parent == NULL))
  page->compact_shared_parent = value;
 
  if (page->compact_shared_parent == value)
@@ -954,7 +954,7 @@ PUGI_IMPL_NS_BEGIN
  return compact_get_value<header_offset, T>(this);
  }
  else
- return 0;
+ return NULL;
  }
 
  T* operator->() const
@@ -984,7 +984,7 @@ PUGI_IMPL_NS_BEGIN
  {
  xml_memory_page* page = compact_get_page(this, header_offset);
 
- if (PUGI_IMPL_UNLIKELY(page->compact_string_base == 0))
+ if (PUGI_IMPL_UNLIKELY(page->compact_string_base == NULL))
  page->compact_string_base = value;
 
  ptrdiff_t offset = value - page->compact_string_base;
@@ -1050,7 +1050,7 @@ PUGI_IMPL_NS_BEGIN
  }
  }
  else
- return 0;
+ return NULL;
  }
 
  private:
@@ -4639,7 +4639,7 @@ PUGI_IMPL_NS_BEGIN
  PUGI_IMPL_FN double get_value_double(const char_t* value)
  {
  #ifdef PUGIXML_WCHAR_MODE
- return wcstod(value, 0);
+ return wcstod(value, NULL);
  #else
  return strtod(value, NULL);
  #endif
@@ -4648,7 +4648,7 @@ PUGI_IMPL_NS_BEGIN
  PUGI_IMPL_FN float get_value_float(const char_t* value)
  {
  #ifdef PUGIXML_WCHAR_MODE
- return static_cast<float>(wcstod(value, 0));
+ return static_cast<float>(wcstod(value, NULL));
  #else
  return static_cast<float>(strtod(value, NULL));
  #endif
@@ -7308,7 +7308,7 @@ namespace pugi
  doc->_hash = &doc->hash;
 
  // make sure we don't access other hash up until the end when we reinitialize other document
- other->_hash = 0;
+ other->_hash = NULL;
  #endif
 
  // move page structure
@@ -8616,7 +8616,7 @@ PUGI_IMPL_NS_BEGIN
 
  // parse string
  #ifdef PUGIXML_WCHAR_MODE
- return wcstod(string, 0);
+ return wcstod(string, NULL);
  #else
  return strtod(string, NULL);
  #endif