adding documentation.

doc/basics.md

@@ -183,6 +183,9 @@ auto json = padded_string::load("twitter.json"); // load JSON file 'twitter.json
 ondemand::document doc = parser.iterate(json); // position a pointer at the beginning of the JSON data
 ```
 
+(Windows users compiling with C++17 or better may use `wchar_t` strings to support non-ASCII
+filenames: `padded_string::load(L"twitter.json")`.)
+
 If you prefer not to create your own `ondemand::parser` instance, you can access
 a thread-local version by calling `ondemand::parser.get_parser()`.
 

doc/dom.md

@@ -54,6 +54,22 @@ dom::parser parser;
 dom::element doc = parser.parse("[1,2,3]"_padded); // parse a string, the _padded suffix creates a simdjson::padded_string instance
 ```
 
+You can also load a `padded_string` from a file.
+
+
+```cpp
+auto json = padded_string::load("twitter.json"); // load JSON file 'twitter.json'.
+dom::element doc = parser.parse(json);
+```
+
+(Windows users compiling with C++17 or better may use `wchar_t` strings to support non-ASCII
+filenames: `padded_string::load(L"twitter.json")`.)
+
+
+(Windows users compiling with C++17 or better may use `wchar_t` strings to support non-ASCII
+filenames: `padded_string::load(L"twitter.json")`.)
+
+
 You can copy your data directly on a `simdjson::padded_string` as follows:
 
 ```cpp

include/simdjson/padded_string-inl.h

@@ -8,10 +8,8 @@
 #include "simdjson/padded_string_view-inl.h"
 
 #include <climits>
+#include <cwchar>
 
-#if defined(_WIN32) && SIMDJSON_CPLUSPLUS17
-  #include <wchar.h>
-#endif
 namespace simdjson {
 namespace internal {