Fix erroneous error tests in pow/exp.

diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index d4e551b5edb5231f1aa4be6726054b1e8af8c60d..441f766f0ba4dd38b85377de930fa2010b100a1b 100644 (file)
--- a/src/backend/utils/adt/float.c
+++ b/src/backend/utils/adt/float.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.137 2007/01/03 14:35:24 momjian Exp $
+ *       $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.138 2007/01/03 19:34:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1445,7 +1445,7 @@ dpow(PG_FUNCTION_ARGS)
         */
        errno = 0;
        result = pow(arg1, arg2);
-       if (errno == ERANGE && isnan(result))
+       if (errno == ERANGE || isnan(result))
        {
                if ((fabs(arg1) > 1 && arg2 >= 0) || (fabs(arg1) < 1 && arg2 < 0))
                        result = (arg1 >= 0) ? get_float8_infinity() : -get_float8_infinity();
@@ -1474,14 +1474,13 @@ dexp(PG_FUNCTION_ARGS)
         */
        errno = 0;
        result = exp(arg1);
-       if (errno == ERANGE && isnan(result))
+       if (errno == ERANGE || isnan(result))
        {
                if (arg1 >= 0)
                        result = get_float8_infinity();
                else
                        result = 0;
        }
-       
 
        CHECKFLOATVAL(result, isinf(arg1), false);
        PG_RETURN_FLOAT8(result);