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-rw-r--r--include/ruby/missing.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h
index 91a65402995..0edb1ec6c0a 100644
--- a/include/ruby/missing.h
+++ b/include/ruby/missing.h
@@ -124,20 +124,27 @@ RUBY_EXTERN double lgamma_r(double, int *);
RUBY_EXTERN double cbrt(double);
#endif
+#if !defined(INFINITY) || !defined(NAN)
+union bytesequence4_or_float {
+ unsigned char bytesequence[4];
+ float float_value;
+};
+#endif
+
#ifdef INFINITY
# define HAVE_INFINITY
#else
/** @internal */
-RUBY_EXTERN const unsigned char rb_infinity[];
-# define INFINITY (*(float *)rb_infinity)
+RUBY_EXTERN const union bytesequence4_or_float rb_infinity;
+# define INFINITY (rb_infinity.float_value)
#endif
#ifdef NAN
# define HAVE_NAN
#else
/** @internal */
-RUBY_EXTERN const unsigned char rb_nan[];
-# define NAN (*(float *)rb_nan)
+RUBY_EXTERN const union bytesequence4_or_float rb_nan;
+# define NAN (rb_nan.float_value)
#endif
#ifndef isinf