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-rw-r--r--include/mruby/value.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/mruby/value.h b/include/mruby/value.h
index d51fbb7bc..a940aabb7 100644
--- a/include/mruby/value.h
+++ b/include/mruby/value.h
@@ -72,6 +72,8 @@ typedef short mrb_sym;
# define PRIo64 "I64o"
# define PRIx64 "I64x"
# define PRIX64 "I64X"
+# define INFINITY ((float)(DBL_MAX * DBL_MAX))
+# define NAN ((float)(INFINITY - INFINITY))
# else
# include <inttypes.h>
# endif