From c073ed8f702e98ec56ed05e0c02167e355e6ee31 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Tue, 24 Mar 2020 01:34:52 +0300
Subject: switch to Boost.Nowide everywhere

---
 src/error.cpp | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

(limited to 'src/error.cpp')

diff --git a/src/error.cpp b/src/error.cpp
index 16512b3..d305e88 100644
--- a/src/error.cpp
+++ b/src/error.cpp
@@ -5,6 +5,8 @@
 
 #include "pdb/all.hpp"
 
+#include <boost/nowide/convert.hpp>
+
 #include <windows.h>
 
 #include <string>
@@ -13,9 +15,9 @@ namespace pdb {
 namespace error {
 namespace {
 
-std::string trim_trailing_newline(const std::string& s) {
-    const auto last_pos = s.find_last_not_of("\r\n");
-    if (std::string::npos == last_pos)
+std::wstring trim_trailing_newline(const std::wstring& s) {
+    const auto last_pos = s.find_last_not_of(L"\r\n");
+    if (std::wstring::npos == last_pos)
         return {};
     return s.substr(0, last_pos + 1);
 }
@@ -23,25 +25,25 @@ std::string trim_trailing_newline(const std::string& s) {
 } // namespace
 
 std::string CategoryWindows::message(int code) const {
-    char* buf;
+    wchar_t* buf;
 
-    const auto nbwritten = FormatMessageA(
+    const auto len = FormatMessageW(
         FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
         NULL,
         code,
         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-        reinterpret_cast<char*>(&buf),
+        reinterpret_cast<wchar_t*>(&buf),
         0,
         NULL);
 
-    if (0 == nbwritten) {
+    if (0 == len) {
         LocalFree(buf);
         return "Couldn't format the error message";
     }
 
-    std::string msg{buf, nbwritten};
+    std::wstring msg{buf, len};
     LocalFree(buf);
-    return trim_trailing_newline(msg);
+    return boost::nowide::narrow(trim_trailing_newline(msg));
 }
 
 } // namespace error
-- 
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