1 files changed, 31 insertions, 1 deletions
diff --git a/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/strfunc.h b/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/strfunc.h
index 84405065a..226439a76 100644
--- a/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/strfunc.h
+++ b/src/3rdparty/assimp/contrib/rapidjson/include/rapidjson/internal/strfunc.h
@@ -15,7 +15,8 @@
 #ifndef RAPIDJSON_INTERNAL_STRFUNC_H_
 #define RAPIDJSON_INTERNAL_STRFUNC_H_
 
-#include "../rapidjson.h"
+#include "../stream.h"
+#include <cwchar>
 
 RAPIDJSON_NAMESPACE_BEGIN
 namespace internal {
@@ -28,11 +29,40 @@ namespace internal {
 */
 template <typename Ch>
 inline SizeType StrLen(const Ch* s) {
+    RAPIDJSON_ASSERT(s != 0);
     const Ch* p = s;
     while (*p) ++p;
     return SizeType(p - s);
 }
 
+template <>
+inline SizeType StrLen(const char* s) {
+    return SizeType(std::strlen(s));
+}
+
+template <>
+inline SizeType StrLen(const wchar_t* s) {
+    return SizeType(std::wcslen(s));
+}
+
+//! Returns number of code points in a encoded string.
+template<typename Encoding>
+bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) {
+    RAPIDJSON_ASSERT(s != 0);
+    RAPIDJSON_ASSERT(outCount != 0);
+    GenericStringStream<Encoding> is(s);
+    const typename Encoding::Ch* end = s + length;
+    SizeType count = 0;
+    while (is.src_ < end) {
+        unsigned codepoint;
+        if (!Encoding::Decode(is, &codepoint))
+            return false;
+        count++;
+    }
+    *outCount = count;
+    return true;
+}
+
 } // namespace internal
 RAPIDJSON_NAMESPACE_END