Revise C++ coding style using clang-format

Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

1 files changed, 51 insertions, 79 deletions

diff --git a/Source/cmCMakePolicyCommand.cxx b/Source/cmCMakePolicyCommand.cxx
index 9132aec..07e0885 100644
--- a/Source/cmCMakePolicyCommand.cxx
+++ b/Source/cmCMakePolicyCommand.cxx
@@ -14,47 +14,35 @@
 #include "cmVersion.h"
 
 // cmCMakePolicyCommand
-bool cmCMakePolicyCommand
-::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
+bool cmCMakePolicyCommand::InitialPass(std::vector<std::string> const& args,
+                                       cmExecutionStatus&)
 {
-  if(args.size() < 1)
-    {
+  if (args.size() < 1) {
     this->SetError("requires at least one argument.");
     return false;
-    }
+  }
 
-  if(args[0] == "SET")
-    {
+  if (args[0] == "SET") {
     return this->HandleSetMode(args);
-    }
-  else if(args[0] == "GET")
-    {
+  } else if (args[0] == "GET") {
     return this->HandleGetMode(args);
-    }
-  else if(args[0] == "PUSH")
-    {
-    if(args.size() > 1)
-      {
+  } else if (args[0] == "PUSH") {
+    if (args.size() > 1) {
       this->SetError("PUSH may not be given additional arguments.");
       return false;
-      }
+    }
     this->Makefile->PushPolicy();
     return true;
-    }
-  else if(args[0] == "POP")
-    {
-    if(args.size() > 1)
-      {
+  } else if (args[0] == "POP") {
+    if (args.size() > 1) {
       this->SetError("POP may not be given additional arguments.");
       return false;
-      }
+    }
     this->Makefile->PopPolicy();
     return true;
-    }
-  else if(args[0] == "VERSION")
-    {
+  } else if (args[0] == "VERSION") {
     return this->HandleVersionMode(args);
-    }
+  }
 
   std::ostringstream e;
   e << "given unknown first argument \"" << args[0] << "\"";
@@ -64,60 +52,50 @@ bool cmCMakePolicyCommand
 
 bool cmCMakePolicyCommand::HandleSetMode(std::vector<std::string> const& args)
 {
-  if(args.size() != 3)
-    {
+  if (args.size() != 3) {
     this->SetError("SET must be given exactly 2 additional arguments.");
     return false;
-    }
+  }
 
   cmPolicies::PolicyStatus status;
-  if(args[2] == "OLD")
-    {
+  if (args[2] == "OLD") {
     status = cmPolicies::OLD;
-    }
-  else if(args[2] == "NEW")
-    {
+  } else if (args[2] == "NEW") {
     status = cmPolicies::NEW;
-    }
-  else
-    {
+  } else {
     std::ostringstream e;
     e << "SET given unrecognized policy status \"" << args[2] << "\"";
     this->SetError(e.str());
     return false;
-    }
+  }
 
-  if(!this->Makefile->SetPolicy(args[1].c_str(), status))
-    {
+  if (!this->Makefile->SetPolicy(args[1].c_str(), status)) {
     this->SetError("SET failed to set policy.");
     return false;
-    }
-  if(args[1] == "CMP0001" &&
-     (status == cmPolicies::WARN || status == cmPolicies::OLD))
-    {
-    if(!(this->Makefile->GetState()
-         ->GetInitializedCacheValue("CMAKE_BACKWARDS_COMPATIBILITY")))
-      {
+  }
+  if (args[1] == "CMP0001" &&
+      (status == cmPolicies::WARN || status == cmPolicies::OLD)) {
+    if (!(this->Makefile->GetState()->GetInitializedCacheValue(
+          "CMAKE_BACKWARDS_COMPATIBILITY"))) {
       // Set it to 2.4 because that is the last version where the
       // variable had meaning.
-      this->Makefile->AddCacheDefinition
-        ("CMAKE_BACKWARDS_COMPATIBILITY", "2.4",
-         "For backwards compatibility, what version of CMake "
-         "commands and "
-         "syntax should this version of CMake try to support.",
-         cmState::STRING);
-      }
-    }
+      this->Makefile->AddCacheDefinition(
+        "CMAKE_BACKWARDS_COMPATIBILITY", "2.4",
+        "For backwards compatibility, what version of CMake "
+        "commands and "
+        "syntax should this version of CMake try to support.",
+        cmState::STRING);
+    }
+  }
   return true;
 }
 
 bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
 {
-  if(args.size() != 3)
-    {
+  if (args.size() != 3) {
     this->SetError("GET must be given exactly 2 additional arguments.");
     return false;
-    }
+  }
 
   // Get arguments.
   std::string const& id = args[1];
@@ -125,19 +103,17 @@ bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
 
   // Lookup the policy number.
   cmPolicies::PolicyID pid;
-  if(!cmPolicies::GetPolicyID(id.c_str(), pid))
-    {
+  if (!cmPolicies::GetPolicyID(id.c_str(), pid)) {
     std::ostringstream e;
     e << "GET given policy \"" << id << "\" which is not known to this "
       << "version of CMake.";
     this->SetError(e.str());
     return false;
-    }
+  }
 
   // Lookup the policy setting.
   cmPolicies::PolicyStatus status = this->Makefile->GetPolicyStatus(pid);
-  switch (status)
-    {
+  switch (status) {
     case cmPolicies::OLD:
       // Report that the policy is set to OLD.
       this->Makefile->AddDefinition(var, "OLD");
@@ -154,32 +130,28 @@ bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args)
     case cmPolicies::REQUIRED_ALWAYS:
       // The policy is required to be set before anything needs it.
       {
-      std::ostringstream e;
-      e << cmPolicies::GetRequiredPolicyError(pid)
-        << "\n"
-        << "The call to cmake_policy(GET " << id << " ...) at which this "
-        << "error appears requests the policy, and this version of CMake "
-        << "requires that the policy be set to NEW before it is checked.";
-      this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+        std::ostringstream e;
+        e << cmPolicies::GetRequiredPolicyError(pid) << "\n"
+          << "The call to cmake_policy(GET " << id << " ...) at which this "
+          << "error appears requests the policy, and this version of CMake "
+          << "requires that the policy be set to NEW before it is checked.";
+        this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
       }
-    }
+  }
 
   return true;
 }
 
-bool
-cmCMakePolicyCommand::HandleVersionMode(std::vector<std::string> const& args)
+bool cmCMakePolicyCommand::HandleVersionMode(
+  std::vector<std::string> const& args)
 {
-  if(args.size() <= 1)
-    {
+  if (args.size() <= 1) {
     this->SetError("VERSION not given an argument");
     return false;
-    }
-  else if(args.size() >= 3)
-    {
+  } else if (args.size() >= 3) {
     this->SetError("VERSION given too many arguments");
     return false;
-    }
+  }
   this->Makefile->SetPolicyVersion(args[1].c_str());
   return true;
 }