fix pthread_setspecific on values of null

2 files changed, 10 insertions, 0 deletions

diff --git a/tests/pthread/specific.c b/tests/pthread/specific.c
index 914884e7..631baf8c 100644
--- a/tests/pthread/specific.c
+++ b/tests/pthread/specific.c
@@ -33,6 +33,14 @@ int main(void)
     printf("pthread_getspecific = %d\n", *data2);
     assert(*data2 == 123);
 
+    rv = pthread_setspecific(key, NULL);
+    printf("valid pthread_setspecific for value NULL = %d\n", rv);
+    assert(rv == 0);
+
+    data2 = pthread_getspecific(key);
+    assert(data2 == NULL);
+    printf("pthread_getspecific = %p\n", data2);
+
     rv = pthread_key_create(&key, &destr_function);
     data2 = pthread_getspecific(key);
     printf("pthread_getspecific after key recreate = %p\n", data2);
diff --git a/tests/pthread/specific.c.txt b/tests/pthread/specific.c.txt
index ad122b3d..ce7bef3d 100644
--- a/tests/pthread/specific.c.txt
+++ b/tests/pthread/specific.c.txt
@@ -1,6 +1,8 @@
 pthread_key_create = 0
 pthread_setspecific = 0
 pthread_getspecific = 123
+valid pthread_setspecific for value NULL = 0
+pthread_getspecific = (nil)
 pthread_getspecific after key recreate = (nil)
 pthread_key_delete = 0
 pthread_key_delete repeated = 22