1 files changed, 8 insertions, 0 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 817fc13cfd..340ea8bb80 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -1902,6 +1902,8 @@ BigDecimal_sign(VALUE self)
 void
 Init_bigdecimal(void)
 {
+    VALUE arg;
+
     /* Initialize VP routines */
     VpInit((U_LONG)0);
 
@@ -2023,6 +2025,12 @@ Init_bigdecimal(void)
     /* -3: Indicates that a value is negative and infinite. See BigDecimal.sign. */
     rb_define_const(rb_cBigDecimal, "SIGN_NEGATIVE_INFINITE",INT2FIX(VP_SIGN_NEGATIVE_INFINITE));
 
+    arg = rb_str_new2("+Infinity");
+    rb_define_const(rb_cBigDecimal, "INFINITY", BigDecimal_global_new(1, &arg, rb_cBigDecimal));
+    arg = rb_str_new2("NaN");
+    rb_define_const(rb_cBigDecimal, "NAN", BigDecimal_global_new(1, &arg, rb_cBigDecimal));
+
+
     /* instance methods */
     rb_define_method(rb_cBigDecimal, "precs", BigDecimal_prec, 0);