1 files changed, 42 insertions, 7 deletions

diff --git a/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/stack.h b/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/stack.h
index 344785dcd..5c5398c35 100644
--- a/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/stack.h
+++ b/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/stack.h
@@ -15,9 +15,14 @@
 #ifndef RAPIDJSON_INTERNAL_STACK_H_
 #define RAPIDJSON_INTERNAL_STACK_H_
 
-#include "../rapidjson.h"
+#include "../allocators.h"
 #include "swap.h"
 
+#if defined(__clang__)
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(c++98-compat)
+#endif
+
 RAPIDJSON_NAMESPACE_BEGIN
 namespace internal {
 
@@ -33,7 +38,6 @@ public:
     // Optimization note: Do not allocate memory for stack_ in constructor.
     // Do it lazily when first Push() -> Expand() -> Resize().
     Stack(Allocator* allocator, size_t stackCapacity) : allocator_(allocator), ownAllocator_(0), stack_(0), stackTop_(0), stackEnd_(0), initialCapacity_(stackCapacity) {
-        RAPIDJSON_ASSERT(stackCapacity > 0);
     }
 
 #if RAPIDJSON_HAS_CXX11_RVALUE_REFS
@@ -108,11 +112,22 @@ public:
     // Optimization note: try to minimize the size of this function for force inline.
     // Expansion is run very infrequently, so it is moved to another (probably non-inline) function.
     template<typename T>
-    RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) {
+    RAPIDJSON_FORCEINLINE void Reserve(size_t count = 1) {
          // Expand the stack if needed
-        if (stackTop_ + sizeof(T) * count >= stackEnd_)
+        if (RAPIDJSON_UNLIKELY(stackTop_ + sizeof(T) * count > stackEnd_))
             Expand<T>(count);
+    }
+
+    template<typename T>
+    RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) {
+        Reserve<T>(count);
+        return PushUnsafe<T>(count);
+    }
 
+    template<typename T>
+    RAPIDJSON_FORCEINLINE T* PushUnsafe(size_t count = 1) {
+        RAPIDJSON_ASSERT(stackTop_);
+        RAPIDJSON_ASSERT(stackTop_ + sizeof(T) * count <= stackEnd_);
         T* ret = reinterpret_cast<T*>(stackTop_);
         stackTop_ += sizeof(T) * count;
         return ret;
@@ -132,7 +147,22 @@ public:
     }
 
     template<typename T>
-    T* Bottom() { return (T*)stack_; }
+    const T* Top() const {
+        RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
+        return reinterpret_cast<T*>(stackTop_ - sizeof(T));
+    }
+
+    template<typename T>
+    T* End() { return reinterpret_cast<T*>(stackTop_); }
+
+    template<typename T>
+    const T* End() const { return reinterpret_cast<T*>(stackTop_); }
+
+    template<typename T>
+    T* Bottom() { return reinterpret_cast<T*>(stack_); }
+
+    template<typename T>
+    const T* Bottom() const { return reinterpret_cast<T*>(stack_); }
 
     bool HasAllocator() const {
         return allocator_ != 0;
@@ -142,6 +172,7 @@ public:
         RAPIDJSON_ASSERT(allocator_);
         return *allocator_;
     }
+
     bool Empty() const { return stackTop_ == stack_; }
     size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); }
     size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); }
@@ -153,7 +184,7 @@ private:
         size_t newCapacity;
         if (stack_ == 0) {
             if (!allocator_)
-                ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator());
+                ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
             newCapacity = initialCapacity_;
         } else {
             newCapacity = GetCapacity();
@@ -168,7 +199,7 @@ private:
 
     void Resize(size_t newCapacity) {
         const size_t size = GetSize();  // Backup the current size
-        stack_ = (char*)allocator_->Realloc(stack_, GetCapacity(), newCapacity);
+        stack_ = static_cast<char*>(allocator_->Realloc(stack_, GetCapacity(), newCapacity));
         stackTop_ = stack_ + size;
         stackEnd_ = stack_ + newCapacity;
     }
@@ -193,4 +224,8 @@ private:
 } // namespace internal
 RAPIDJSON_NAMESPACE_END
 
+#if defined(__clang__)
+RAPIDJSON_DIAG_POP
+#endif
+
 #endif // RAPIDJSON_STACK_H_