Add NUMERIC compare macros to simplify code

2016-03-28 03:52:49 -07:00
parent 2e4ddd5c22
commit f1ed310322
2 changed files with 6 additions and 4 deletions
--- a/Marlin/macros.h
+++ b/Marlin/macros.h
@ -51,6 +51,8 @@
 #define ENABLED(b) _CAT(SWITCH_ENABLED_, b)
 #define DISABLED(b) (!_CAT(SWITCH_ENABLED_, b))

+#define NUMERIC(a) ((a) >= '0' && '9' >= (a))
+#define NUMERIC_SIGNED(a) (NUMERIC(a) || (a) == '-')
 #define COUNT(a) (sizeof(a)/sizeof(*a))

 #endif //__MACROS_H