From 60afab9e44db242afe915afd73fb6f4924d69069 Mon Sep 17 00:00:00 2001
From: Daniel Pfeifer <daniel@pfeifer-mail.de>
Date: Thu, 25 May 2017 00:55:31 +0200
Subject: IWYU: add mapping for std::__decay_and_strip

---
 Utilities/IWYU/mapping.imp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Utilities/IWYU/mapping.imp b/Utilities/IWYU/mapping.imp
index a732c9c..3604c0d 100644
--- a/Utilities/IWYU/mapping.imp
+++ b/Utilities/IWYU/mapping.imp
@@ -53,6 +53,19 @@
   # This will still correctly require "cm_auto_ptr.hxx" for CM_AUTO_PTR.
   { symbol: [ "cm::auto_ptr", private, "\"cmConfigure.h\"", public ] },
 
+  # __decay_and_strip is used internally in the C++11 standard library.
+  # IWYU does not classify it as internal and suggests to add <type_traits>.
+  # To ignore it, we simply map it to a file that is included anyway.
+  # TODO: Can this be simplified with an @-expression?
+  #{ symbol: [ "@std::__decay_and_strip<.*>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<cmCommand *&>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<cmGeneratorTarget *&>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<cmFindCommon::PathLabel &>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<std::basic_string<char> &>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<const std::basic_string<char> &>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<cmFindPackageCommand::PathLabel &>::__type", private, "\"cmConfigure.h\"", public ] },
+  { symbol: [ "std::__decay_and_strip<__gnu_cxx::__normal_iterator<const cmCTestTestHandler::cmCTestTestProperties *, std::vector<cmCTestTestHandler::cmCTestTestProperties, std::allocator<cmCTestTestHandler::cmCTestTestProperties> > > &>::__type", private, "\"cmConfigure.h\"", public ] },
+
   # Wrappers for headers added in TR1 / C++11
   # { include: [ "<array>", public, "\"cm_array.hxx\"", public ] },
   # { include: [ "<functional>", public, "\"cm_functional.hxx\"", public ] },
-- 
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