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Fix compatibility with old Windows 95 and 98

Report and patches by bnemias.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
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1 parent c11edd3 commit 10184748533195e4a76a7283b9f9048db05c6fc4 @mcostalba committed Oct 20, 2012
Showing with 5 additions and 2 deletions.
  1. +4 −1 src/platform.h
  2. +1 −1 src/search.cpp
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@@ -92,6 +92,9 @@ typedef CRITICAL_SECTION Lock;
typedef HANDLE WaitCondition;
typedef HANDLE NativeHandle;
+// On Windows 95 and 98 parameter lpThreadId my not be null
+inline DWORD* dwWin9xKludge() { static DWORD dw; return &dw; }
+
# define lock_init(x) InitializeCriticalSection(&(x))
# define lock_grab(x) EnterCriticalSection(&(x))
# define lock_release(x) LeaveCriticalSection(&(x))
@@ -101,7 +104,7 @@ typedef HANDLE NativeHandle;
# define cond_signal(x) SetEvent(x)
# define cond_wait(x,y) { lock_release(y); WaitForSingleObject(x, INFINITE); lock_grab(y); }
# define cond_timedwait(x,y,z) { lock_release(y); WaitForSingleObject(x,z); lock_grab(y); }
-# define thread_create(x,f,t) (x = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)f,t,0,NULL), x != NULL)
+# define thread_create(x,f,t) (x = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)f,t,0,dwWin9xKludge()), x != NULL)
# define thread_join(x) { WaitForSingleObject(x, INFINITE); CloseHandle(x); }
#endif
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@@ -136,7 +136,7 @@ void Search::init() {
// Init futility move count array
for (d = 0; d < 32; d++)
- FutilityMoveCounts[d] = int(3.001 + 0.25 * pow(d, 2.0));
+ FutilityMoveCounts[d] = int(3.001 + 0.25 * pow(double(d), 2.0));
}

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