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-rw-r--r--string/test-ffs.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/string/test-ffs.c b/string/test-ffs.c
index 8317794d2a..ad2a4cd374 100644
--- a/string/test-ffs.c
+++ b/string/test-ffs.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1994, 1997, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 1997, 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
On-Line Applications Research Corporation.
@@ -28,24 +28,32 @@ main (void)
int failures = 0;
int i;
- auto void try (int value, int expected);
+ auto void try (const char *name, long long int param, int value,
+ int expected);
- void try (int value, int expected)
+ void try (const char *name, long long int param, int value, int expected)
{
- if (ffs (value) != expected)
+ if (value != expected)
{
- fprintf (stderr, "%#x expected %d got %d\n",
- value, expected, ffs (value));
+ printf ("%s(%#llx) expected %d got %d\n",
+ name, param, expected, value);
++failures;
}
+ else
+ printf ("%s(%#llx) as expected %d\n", name, param, value);
}
- try (0, 0);
- for (i=0 ; i<32 ; i++)
- try (1<<i, i+1);
- for (i=0 ; i<32 ; i++)
- try ((~0 >> i) << i, i+1);
- try (0x80008000, 16);
+#define TEST(fct, type) \
+ try (#fct, 0, fct ((type) 0), 0); \
+ for (i=0 ; i < 8 * sizeof (type); i++) \
+ try (#fct, 1ll << i, fct (((type) 1) << i), i + 1); \
+ for (i=0 ; i < 8 * sizeof (type) ; i++) \
+ try (#fct, (~0ll >> i) << i, fct ((~((type) 0) >> i) << i), i + 1); \
+ try (#fct, 0x80008000, fct ((type) 0x80008000), 16)
+
+ TEST (ffs, int);
+ TEST (ffsl, long int);
+ TEST (ffsll, long long int);
if (failures)
printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);