[src/trunk]: src/tests/lib/libc/gen print stderr, when things go wrong.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/18790bd8325c
branches:  trunk
changeset: 770018:18790bd8325c
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Sep 30 18:27:18 2011 +0000

description:
print stderr, when things go wrong.

diffstat:

 tests/lib/libc/gen/t_fpsetround.c |  59 +++++++++++++++++++++++---------------
 1 files changed, 35 insertions(+), 24 deletions(-)

diffs (110 lines):

diff -r 2d5a5b4a12ed -r 18790bd8325c tests/lib/libc/gen/t_fpsetround.c
--- a/tests/lib/libc/gen/t_fpsetround.c Fri Sep 30 17:44:58 2011 +0000
+++ b/tests/lib/libc/gen/t_fpsetround.c Fri Sep 30 18:27:18 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_fpsetround.c,v 1.2 2011/09/30 17:44:58 christos Exp $ */
+/* $NetBSD: t_fpsetround.c,v 1.3 2011/09/30 18:27:18 christos Exp $ */
 
 /*-
  * Copyright (c) 2011 The NetBSD Foundation, Inc.
@@ -36,24 +36,18 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_fpsetround.c,v 1.2 2011/09/30 17:44:58 christos Exp $");
+__RCSID("$NetBSD: t_fpsetround.c,v 1.3 2011/09/30 18:27:18 christos Exp $");
 
 #include <float.h>
 #include <math.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 
 #if !defined(__mc68000__) && !defined(__vax__)
 #include <ieeefp.h>
 #endif
 
-#ifdef DEBUG
-#include <stdio.h>
-#define DPRINTF(a)     printf a
-#else
-#define DPRINTF(a)
-#endif
-
 #include <atf-c.h>
 
 ATF_TC(fpsetround_basic);
@@ -66,6 +60,18 @@
 
 static const struct {
        const char *n;
+       int rm;
+       int rf;
+} rnd[] = {
+       { "RN", FP_RN, 1 },
+       { "RP", FP_RP, 2 },
+       { "RM", FP_RM, 3 },
+       { "RZ", FP_RZ, 0 },
+
+};
+
+static const struct {
+       const char *n;
        int v[4];
 } tst[] = {    /*  RN  RP  RM  RZ */
        {  "1.1", {  1,  1,  2,  1 } },
@@ -79,23 +85,23 @@
 static void
 test(int r)
 {
+       int did = 0;
        for (size_t i = 0; i < __arraycount(tst); i++) {
                double d = strtod(tst[i].n, NULL);
-               ATF_CHECK_EQ((int)rint(d), tst[i].v[r]);
-               DPRINTF(("%s %d %d\n", tst[i].n, (int)rint(d), tst[i].v[r]));
+               int g = (int)rint(d);
+               int e = tst[i].v[r];
+               ATF_CHECK_EQ(g, e);
+               if (g != e) {
+                       if (!did) {
+                               fprintf(stderr, "Mode Value Result Expected\n");
+                               did = 1;
+                       }
+                       fprintf(stderr, "%4.4s %-5.5s %6d %8d\n", rnd[r].n,
+                           tst[i].n, (int)rint(d), tst[i].v[r]);
+               }
        }
 }
 
-static const struct {
-       int rm;
-       int rf;
-} rnd[] = {
-       { FP_RN, 1 },
-       { FP_RP, 2 },
-       { FP_RM, 3 },
-       { FP_RZ, 0 },
-
-};
 
 ATF_TC_BODY(fpsetround_basic, tc)
 {
@@ -114,10 +120,15 @@
                int n = rnd[j].rm;
 
                ATF_CHECK_EQ(r = fpsetround(n), o);
-               DPRINTF(("s o=%x r=%x\n", o, r));
+               if (o != r)
+                       fprintf(stderr, "set expected=%x got=%x\n", o, r);
                ATF_CHECK_EQ(r = fpgetround(), n);
-               DPRINTF(("g n=%x r=%x\n", n, r));
-               ATF_CHECK_EQ(FLT_ROUNDS, rnd[j].rf);
+               if (n != r)
+                       fprintf(stderr, "get expected=%x got=%x\n", n, r);
+               ATF_CHECK_EQ(r= FLT_ROUNDS, rnd[j].rf);
+               if (r != rnd[j].rf)
+                       fprintf(stderr, "rounds expected=%x got=%x\n",
+                           rnd[j].rf, r);
                test(rnd[j].rf);
        }
 #endif /* defined(__mc68000__) || defined(__vax__) */