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-rw-r--r--include/mruby/numeric.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/mruby/numeric.h b/include/mruby/numeric.h
index a83452d76..229f48798 100644
--- a/include/mruby/numeric.h
+++ b/include/mruby/numeric.h
@@ -16,7 +16,11 @@
*/
MRB_BEGIN_DECL
-#define TYPED_FIXABLE(f,t) (((f) <= (t)MRB_INT_MAX) && ((f) >= (t)MRB_INT_MIN))
+#define TYPED_POSFIXABLE(f,t) ((f) <= (t)MRB_INT_MAX)
+#define TYPED_NEGFIXABLE(f,t) ((f) >= (t)MRB_INT_MIN)
+#define TYPED_FIXABLE(f,t) (TYPED_POSFIXABLE(f,t) && TYPED_NEGFIXABLE(f,t))
+#define POSFIXABLE(f,t) TYPED_POSFIXABLE(f,t)
+#define NEGFIXABLE(f,t) TYPED_NEGFIXABLE(f,t)
#define FIXABLE(f) TYPED_FIXABLE(f,mrb_int)
#define FIXABLE_FLOAT(f) TYPED_FIXABLE(f,double)