Use std::numeric_limits (#56)

Author: an-tao

trantor/net/EventLoop.cc

@@ -51,7 +51,7 @@ int createEventfd()
 }
 const int kPollTimeMs = 10000;
 #endif
-__thread EventLoop *t_loopInThisThread = nullptr;
+thread_local EventLoop *t_loopInThisThread = nullptr;
 
 EventLoop::EventLoop()
     : _looping(false),

trantor/net/EventLoop.h

@@ -26,6 +26,7 @@
 #include <queue>
 #include <functional>
 #include <chrono>
+#include <limits>
 
 namespace trantor
 {
@@ -177,7 +178,7 @@ class EventLoop : NonCopyable
     std::unique_ptr<Channel> _wakeupChannelPtr;
 
     void doRunInLoopFuncs();
-    size_t _index = -1;
+    size_t _index = std::numeric_limits<size_t>::max();
 };
 
 }  // namespace trantor

trantor/utils/Logger.cc

@@ -55,14 +55,14 @@ inline LogStream &operator<<(LogStream &s, const Logger::SourceFile &v)
 }  // namespace trantor
 using namespace trantor;
 
-static __thread uint64_t lastSecond_ = 0;
-static __thread char lastTimeString_[32] = {0};
+static thread_local uint64_t lastSecond_ = 0;
+static thread_local char lastTimeString_[32] = {0};
 #ifdef __linux__
-static __thread pid_t threadId_ = 0;
+static thread_local pid_t threadId_ = 0;
 #else
-static __thread uint64_t threadId_ = 0;
+static thread_local uint64_t threadId_ = 0;
 #endif
-//   static __thread LogStream logStream_;
+//   static thread_local LogStream logStream_;
 
 void Logger::formatTime()
 {