From fe74581fa07acb3876dc594a7dec209050d48116 Mon Sep 17 00:00:00 2001
From: "Thomas G. Lockhart" <lockhart@fourpalms.org>
Date: Tue, 3 Jun 1997 13:58:06 +0000
Subject: [PATCH] Use finite() macro if available to check returns from pow()
and exp().
---
src/backend/utils/adt/float.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index aa995991165..f5bbbd61c9e 100644
--- a/src/backend/utils/adt/float.c
+++ b/src/backend/utils/adt/float.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.15 1997/05/14 04:35:10 thomas Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.16 1997/06/03 13:58:06 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@@ -974,9 +974,15 @@ float64 dpow(float64 arg1, float64 arg2)
tmp1 = *arg1;
tmp2 = *arg2;
+#ifndef finite
errno = 0;
+#endif
*result = (float64data) pow(tmp1, tmp2);
+#ifndef finite
if (errno == ERANGE)
+#else
+ if (!finite(*result))
+#endif
elog(WARN, "pow() returned a floating point out of the range\n");
CheckFloat8Val(*result);
@@ -998,9 +1004,15 @@ float64 dexp(float64 arg1)
result = (float64) palloc(sizeof(float64data));
tmp = *arg1;
+#ifndef finite
errno = 0;
+#endif
*result = (float64data) exp(tmp);
+#ifndef finite
if (errno == ERANGE)
+#else
+ if (!finite(*result))
+#endif
elog(WARN, "exp() returned a floating point out of range\n");
CheckFloat8Val(*result);
--
GitLab