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-rw-r--r--src/H5TSprivate.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/H5TSprivate.h b/src/H5TSprivate.h
index 76cf8f1..f22ed52 100644
--- a/src/H5TSprivate.h
+++ b/src/H5TSprivate.h
@@ -68,7 +68,7 @@ H5_DLL void H5TS_win32_process_exit(void);
H5_DLL herr_t H5TS_win32_thread_enter(void);
H5_DLL herr_t H5TS_win32_thread_exit(void);
-#define H5TS_thread_id() ((unsigned long)GetCurrentThreadId())
+#define H5TS_thread_id() ((uint64_t)GetCurrentThreadId())
#else /* H5_HAVE_WIN_THREADS */
@@ -102,7 +102,7 @@ typedef pthread_once_t H5TS_once_t;
#define H5TS_mutex_init(mutex) pthread_mutex_init(mutex, NULL)
#define H5TS_mutex_lock_simple(mutex) pthread_mutex_lock(mutex)
#define H5TS_mutex_unlock_simple(mutex) pthread_mutex_unlock(mutex)
-H5_DLL unsigned long H5TS_thread_id(void);
+H5_DLL uint64_t H5TS_thread_id(void);
#endif /* H5_HAVE_WIN_THREADS */