[Python-checkins] python/dist/src/Python compile.c,2.346,2.347

[rhettinger at users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Python
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25613

Modified Files:
	compile.c 
Log Message:
Preserve sign of -0.0 when result is run through marshal.

Index: compile.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Python/compile.c,v
retrieving revision 2.346
retrieving revision 2.347
diff -u -d -r2.346 -r2.347
--- compile.c	21 Feb 2005 20:03:14 -0000	2.346
+++ compile.c	23 Feb 2005 13:37:55 -0000	2.347
@@ -545,7 +545,7 @@
 static int
 fold_unaryops_on_constants(unsigned char *codestr, PyObject *consts)
 {
-	PyObject *newconst, *v;
+	PyObject *newconst=NULL, *v;
 	int len_consts, opcode;
 
 	/* Pre-conditions */
@@ -557,7 +557,9 @@
 	opcode = codestr[3];
 	switch (opcode) {
 	case UNARY_NEGATIVE:
-		newconst = PyNumber_Negative(v);
+		/* Preserve the sign of -0.0 */
+		if (PyObject_IsTrue(v) == 1)
+			newconst = PyNumber_Negative(v);
 		break;
 	case UNARY_CONVERT:
 		newconst = PyObject_Repr(v);