commit 8e5446f902c58a48796c1f0e25a263b7268afe34
author Mark Dickinson <dickinsm@gmail.com> Sat Apr 18 14:41:37 2009 +0000
committer Mark Dickinson <dickinsm@gmail.com> Sat Apr 18 14:41:37 2009 +0000
tree 1f117ab0286a1a2a6f24ff997ca64b67ac1ae194
parent 4beb89b9f7a40703136d0ddac7aecd71d59d17bc

Backport r71704 (add configure check for C99 round function) to trunk.

Python/pymath.c

diff --git a/Python/pymath.c b/Python/pymath.c
index 2749688..6438058 100644
--- a/Python/pymath.c
+++ b/Python/pymath.c
@@ -47,6 +47,19 @@
 }
 #endif /* HAVE_COPYSIGN */
 
+#ifndef HAVE_ROUND
+double
+round(double x)
+{
+    double absx, y;
+    absx = fabs(x);
+    y = floor(absx);
+    if (absx - y >= 0.5)
+        y += 1.0;
+    return copysign(y, x);
+}
+#endif /* HAVE_ROUND */
+
 #ifndef HAVE_LOG1P
 #include <float.h>