[PATCH] Do not use bit and for conjunction of predicates (PR c/81272).

[Martin Liška]

Hi.

This changes code to be consistent:

      if (!decNumberIsNegative(lhs) & decNumberIsNegative(rhs)) {
...
         else if (decNumberIsQNaN(lhs) && decNumberIsSNaN(rhs)) result=+1;

That's fixed in the patch.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.

Ready to be installed?
Martin


libdecnumber/ChangeLog:

2018-02-19  Martin Liska  <mli...@suse.cz>

        PR c/81272
        * decNumber.c (decCompareOp): Do not use bit and
        for conjunction of predicates.
---
 libdecnumber/decNumber.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)



diff --git a/libdecnumber/decNumber.c b/libdecnumber/decNumber.c
index ebfb6c5dd96..e4194211fdc 100644
--- a/libdecnumber/decNumber.c
+++ b/libdecnumber/decNumber.c
@@ -6029,11 +6029,11 @@ decNumber * decCompareOp(decNumber *res, const decNumber *lhs,
 
     /* If total ordering then handle differing signs 'up front' */
     if (op==COMPTOTAL) {		/* total ordering */
-      if (decNumberIsNegative(lhs) & !decNumberIsNegative(rhs)) {
+      if (decNumberIsNegative(lhs) && !decNumberIsNegative(rhs)) {
 	result=-1;
 	break;
 	}
-      if (!decNumberIsNegative(lhs) & decNumberIsNegative(rhs)) {
+      if (!decNumberIsNegative(lhs) && decNumberIsNegative(rhs)) {
 	result=+1;
 	break;
 	}