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-rw-r--r--libgfortran/io/io.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/libgfortran/io/io.h b/libgfortran/io/io.h
index f34d0c3..1ff3627 100644
--- a/libgfortran/io/io.h
+++ b/libgfortran/io/io.h
@@ -311,7 +311,7 @@ st_parameter_filepos;
#define IOPARM_INQUIRE_HAS_WRITE (1 << 28)
#define IOPARM_INQUIRE_HAS_READWRITE (1 << 29)
#define IOPARM_INQUIRE_HAS_CONVERT (1 << 30)
-#define IOPARM_INQUIRE_HAS_FLAGS2 (1 << 31)
+#define IOPARM_INQUIRE_HAS_FLAGS2 (1u << 31)
#define IOPARM_INQUIRE_HAS_ASYNCHRONOUS (1 << 0)
#define IOPARM_INQUIRE_HAS_DECIMAL (1 << 1)
@@ -380,7 +380,7 @@ st_parameter_inquire;
#define IOPARM_DT_HAS_SIGN (1 << 24)
#define IOPARM_DT_HAS_F2003 (1 << 25)
/* Internal use bit. */
-#define IOPARM_DT_IONML_SET (1 << 31)
+#define IOPARM_DT_IONML_SET (1u << 31)
typedef struct st_parameter_dt