Annotate an unlikely condition

[stockfish] / src / misc.cpp

diff --git a/src/misc.cpp b/src/misc.cpp
index 2d14def3a289b73ec9e481cc1672b84528671946..0ca56571ee96f723e8b25991ebbc8efbc29a5e47 100644 (file)
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -24,17 +24,15 @@
 #include "misc.h"
 #include "thread.h"
 
-#if defined(__hpux)
+#ifdef __hpux
 #    include <sys/pstat.h>
 #endif
 
 using namespace std;
 
-/// Version number. If Version is left empty, then Tag plus current
-/// date, in the format DD-MM-YY, are used as a version number.
-
+/// Version number. If Version is left empty, then compile date, in the
+/// format DD-MM-YY, is shown in engine_info.
 static const string Version = "";
-static const string Tag = "";
 
 
 /// engine_info() returns the full name of the current Stockfish version. This
@@ -48,14 +46,12 @@ const string engine_info(bool to_uci) {
   string month, day, year;
   stringstream s, date(__DATE__); // From compiler, format is "Sep 21 2008"
 
-  s << "Stockfish " << Version;
+  s << "Stockfish " << Version << setfill('0');
 
   if (Version.empty())
   {
       date >> month >> day >> year;
-
-      s << Tag << string(Tag.empty() ? "" : " ") << setfill('0') << setw(2) << day
-        << setw(2) << (1 + months.find(month) / 4) << year.substr(2);
+      s << setw(2) << day << setw(2) << (1 + months.find(month) / 4) << year.substr(2);
   }
 
   s << (Is64Bit ? " 64" : "")
@@ -177,7 +173,7 @@ void start_logger(bool b) { Logger::start(b); }
 
 int cpu_count() {
 
-#if defined(_WIN32)
+#ifdef _WIN32
   SYSTEM_INFO s;
   GetSystemInfo(&s);
   return s.dwNumberOfProcessors;
@@ -203,7 +199,7 @@ int cpu_count() {
 
 void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
 
-#if defined(_WIN32)
+#ifdef _WIN32
   int tm = msec;
 #else
   timespec ts, *tm = &ts;
@@ -220,7 +216,7 @@ void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
 /// prefetch() preloads the given address in L1/L2 cache. This is a non
 /// blocking function and do not stalls the CPU waiting for data to be
 /// loaded from memory, that can be quite slow.
-#if defined(NO_PREFETCH)
+#ifdef NO_PREFETCH
 
 void prefetch(char*) {}