From 5f6c236481da552dfdbfff6579dc9d833993adad Mon Sep 17 00:00:00 2001
From: Sebastian Holtermann <sebholt@xwmw.org>
Date: Wed, 27 Mar 2019 13:43:08 +0100
Subject: cmFiletimeCache: Add cmFiletimeCache::Remove method

---
 Source/cmFileTimeCache.cxx | 11 ++++++++---
 Source/cmFileTimeCache.h   | 11 ++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/Source/cmFileTimeCache.cxx b/Source/cmFileTimeCache.cxx
index 1fff6a9..24d6bf6 100644
--- a/Source/cmFileTimeCache.cxx
+++ b/Source/cmFileTimeCache.cxx
@@ -14,8 +14,8 @@ bool cmFileTimeCache::Load(std::string const& fileName, cmFileTime& fileTime)
 {
   // Use the stored time if available.
   {
-    auto fit = this->FileTimes.find(fileName);
-    if (fit != this->FileTimes.end()) {
+    auto fit = this->Cache.find(fileName);
+    if (fit != this->Cache.end()) {
       fileTime = fit->second;
       return true;
     }
@@ -25,10 +25,15 @@ bool cmFileTimeCache::Load(std::string const& fileName, cmFileTime& fileTime)
     return false;
   }
   // Store file time in cache
-  this->FileTimes[fileName] = fileTime;
+  this->Cache[fileName] = fileTime;
   return true;
 }
 
+bool cmFileTimeCache::Remove(std::string const& fileName)
+{
+  return (this->Cache.erase(fileName) != 0);
+}
+
 bool cmFileTimeCache::Compare(std::string const& f1, std::string const& f2,
                               int* result)
 {
diff --git a/Source/cmFileTimeCache.h b/Source/cmFileTimeCache.h
index a47904c..4f1a3a2 100644
--- a/Source/cmFileTimeCache.h
+++ b/Source/cmFileTimeCache.h
@@ -5,7 +5,7 @@
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
-#include "cmFileTime.h"
+#include "cmFileTime.h" // IWYU pragma: keep
 #include <string>
 #include <unordered_map>
 
@@ -28,6 +28,12 @@ public:
   bool Load(std::string const& fileName, cmFileTime& fileTime);
 
   /**
+   * @brief Removes a file time from the cache
+   * @return true if the file was found in the cache and removed
+   */
+  bool Remove(std::string const& fileName);
+
+  /**
    * @brief Compare file modification times.
    * @return true for successful comparison and false for error.
    *
@@ -44,8 +50,7 @@ public:
   bool DifferS(std::string const& f1, std::string const& f2);
 
 private:
-  typedef std::unordered_map<std::string, cmFileTime> FileTimeMap;
-  FileTimeMap FileTimes;
+  std::unordered_map<std::string, cmFileTime> Cache;
 };
 
 #endif
-- 
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