[src/trunk]: src/tests/lib/libc/gen add symbolic name printing.

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

details:   https://anonhg.NetBSD.org/src/rev/f4188c1dbdd4
branches:  trunk
changeset: 770028:f4188c1dbdd4
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Sep 30 23:46:15 2011 +0000

description:
add symbolic name printing.

diffstat:

 tests/lib/libc/gen/t_fpsetround.c |  32 +++++++++++++++++++++++---------
 1 files changed, 23 insertions(+), 9 deletions(-)

diffs (71 lines):

diff -r 86e8088b66ba -r f4188c1dbdd4 tests/lib/libc/gen/t_fpsetround.c
--- a/tests/lib/libc/gen/t_fpsetround.c Fri Sep 30 23:45:41 2011 +0000
+++ b/tests/lib/libc/gen/t_fpsetround.c Fri Sep 30 23:46:15 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: t_fpsetround.c,v 1.3 2011/09/30 18:27:18 christos Exp $ */
+/* $NetBSD: t_fpsetround.c,v 1.4 2011/09/30 23:46:15 christos Exp $ */
 
 /*-
  * Copyright (c) 2011 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_fpsetround.c,v 1.3 2011/09/30 18:27:18 christos Exp $");
+__RCSID("$NetBSD: t_fpsetround.c,v 1.4 2011/09/30 23:46:15 christos Exp $");
 
 #include <float.h>
 #include <math.h>
@@ -82,6 +82,15 @@
        { "-1.9", { -1, -2, -1, -2 } },
 };
 
+static const char *
+getname(int r)
+{
+       for (size_t i = 0; i < __arraycount(rnd); i++)
+               if (rnd[i].rm == r)
+                       return rnd[i].n;
+       return "*unknown*";
+}
+
 static void
 test(int r)
 {
@@ -112,24 +121,29 @@
        int r;
 
        ATF_CHECK_EQ(r = fpgetround(), FP_RN);
+       if (FP_RN != r)
+               fprintf(stderr, "default expected=%s got=%s\n", getname(FP_RN),
+                   getname(r));
        ATF_CHECK_EQ(FLT_ROUNDS, 1);
 
        for (size_t i = 0; i < __arraycount(rnd); i++) {
-               size_t j = (i + 1) & 3;
-               int o = rnd[i].rm;
-               int n = rnd[j].rm;
+               const size_t j = (i + 1) & 3;
+               const int o = rnd[i].rm;
+               const int n = rnd[j].rm;
 
                ATF_CHECK_EQ(r = fpsetround(n), o);
                if (o != r)
-                       fprintf(stderr, "set expected=%x got=%x\n", o, r);
+                       fprintf(stderr, "set %s expected=%s got=%s\n",
+                           getname(n), getname(o), getname(r));
                ATF_CHECK_EQ(r = fpgetround(), n);
                if (n != r)
-                       fprintf(stderr, "get expected=%x got=%x\n", n, r);
-               ATF_CHECK_EQ(r= FLT_ROUNDS, rnd[j].rf);
+                       fprintf(stderr, "get expected=%s got=%s\n", getname(n),
+                           getname(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);
+               test(r);
        }
 #endif /* defined(__mc68000__) || defined(__vax__) */
 }