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-rw-r--r--include/inputstr.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/inputstr.h b/include/inputstr.h
index 5634f3cfc..6af7264c3 100644
--- a/include/inputstr.h
+++ b/include/inputstr.h
@@ -57,7 +57,7 @@ SOFTWARE.
#include "geext.h"
#include "privates.h"
-#define BitIsOn(ptr, bit) (!!(((BYTE *) (ptr))[(bit)>>3] & (1 << ((bit) & 7))))
+#define BitIsOn(ptr, bit) (!!(((const BYTE *) (ptr))[(bit)>>3] & (1 << ((bit) & 7))))
#define SetBit(ptr, bit) (((BYTE *) (ptr))[(bit)>>3] |= (1 << ((bit) & 7)))
#define ClearBit(ptr, bit) (((BYTE *)(ptr))[(bit)>>3] &= ~(1 << ((bit) & 7)))
extern _X_EXPORT int CountBits(const uint8_t *mask, int len);