Change naming convention from _member to member_ (fixes #1905)

extras/tests/JsonDocument/shrinkToFit.cpp

@@ -10,36 +10,36 @@
 
 class ArmoredAllocator {
  public:
-  ArmoredAllocator() : _ptr(0), _size(0) {}
+  ArmoredAllocator() : ptr_(0), size_(0) {}
 
   void* allocate(size_t size) {
-    _ptr = malloc(size);
-    _size = size;
-    return _ptr;
+    ptr_ = malloc(size);
+    size_ = size;
+    return ptr_;
   }
 
   void deallocate(void* ptr) {
-    REQUIRE(ptr == _ptr);
+    REQUIRE(ptr == ptr_);
     free(ptr);
-    _ptr = 0;
-    _size = 0;
+    ptr_ = 0;
+    size_ = 0;
   }
 
   void* reallocate(void* ptr, size_t new_size) {
-    REQUIRE(ptr == _ptr);
+    REQUIRE(ptr == ptr_);
     // don't call realloc, instead alloc a new buffer and erase the old one
     // this way we make sure we support relocation
     void* new_ptr = malloc(new_size);
-    memcpy(new_ptr, _ptr, std::min(new_size, _size));
-    memset(_ptr, '#', _size);  // erase
-    free(_ptr);
-    _ptr = new_ptr;
+    memcpy(new_ptr, ptr_, std::min(new_size, size_));
+    memset(ptr_, '#', size_);  // erase
+    free(ptr_);
+    ptr_ = new_ptr;
     return new_ptr;
   }
 
  private:
-  void* _ptr;
-  size_t _size;
+  void* ptr_;
+  size_t size_;
 };
 
 typedef BasicJsonDocument<ArmoredAllocator> ShrinkToFitTestDocument;