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-rw-r--r--string/test-strchr.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/string/test-strchr.c b/string/test-strchr.c
index 72f7ec9..9483e71 100644
--- a/string/test-strchr.c
+++ b/string/test-strchr.c
@@ -23,7 +23,9 @@
typedef char *(*proto_t) (const char *, int);
char *simple_strchr (const char *, int);
+char *stupid_strchr (const char *, int);
+IMPL (stupid_strchr, 0)
IMPL (simple_strchr, 0)
IMPL (strchr, 1)
@@ -36,6 +38,17 @@ simple_strchr (const char *s, int c)
return (char *) s;
}
+char *
+stupid_strchr (const char *s, int c)
+{
+ size_t n = strlen (s) + 1;
+
+ while (n--)
+ if (*s++ == (char) c)
+ return (char *) s - 1;
+ return NULL;
+}
+
static void
do_one_test (impl_t *impl, const char *s, int c, char *exp_res)
{
@@ -115,15 +128,18 @@ do_random_tests (void)
{
align = random () & 15;
pos = random () & 511;
+ seek_char = random () & 255;
if (pos + align >= 511)
pos = 510 - align - (random () & 7);
len = random () & 511;
- if (pos >= len)
- len = pos + (random () & 7);
+ if ((pos == len && seek_char)
+ || (pos > len && (random () & 1)))
+ len = pos + 1 + (random () & 7);
if (len + align >= 512)
len = 511 - align - (random () & 7);
- seek_char = random () & 255;
- j = len + align + 64;
+ if (pos == len && seek_char)
+ len = pos + 1;
+ j = (pos > len ? pos : len) + align + 64;
if (j > 512)
j = 512;