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-rw-r--r--nuttx/arch/sim/include/limits.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/nuttx/arch/sim/include/limits.h b/nuttx/arch/sim/include/limits.h
index 554c9f1f1..a692c9c36 100644
--- a/nuttx/arch/sim/include/limits.h
+++ b/nuttx/arch/sim/include/limits.h
@@ -44,6 +44,7 @@
* Definitions
************************************************************/
+#define CHAR_BIT 8
#define SCHAR_MIN 0x80
#define SCHAR_MAX 0x7f
#define UCHAR_MAX 0xff