Fix warning on platform with int wide 16 bits.

[bertos.git] / bertos / fs / battfs.h

diff --git a/bertos/fs/battfs.h b/bertos/fs/battfs.h
index bcd5c556229b0a336529c0e1e731681670fa66ed..d621c795f5ad6983c5324b97450f186565442f32 100644 (file)
--- a/bertos/fs/battfs.h
+++ b/bertos/fs/battfs.h
@@ -108,7 +108,7 @@ struct BattFsSuper;
 /**
  * Sentinel used to keep trace of unset pages in disk->page_array.
  */
-#define PAGE_UNSET_SENTINEL ((1 << (CPU_BITS_PER_CHAR * sizeof(pgcnt_t))) - 1)
+#define PAGE_UNSET_SENTINEL ((pgcnt_t)((1L << (CPU_BITS_PER_CHAR * sizeof(pgcnt_t))) - 1))
 
 /**
  * Type interface for disk page read function.