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-rw-r--r--libio/tst-memstream1.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/libio/tst-memstream1.c b/libio/tst-memstream1.c
new file mode 100644
index 0000000000..d18f5cc22a
--- /dev/null
+++ b/libio/tst-memstream1.c
@@ -0,0 +1,89 @@
+#include <mcheck.h>
+#include <stdio.h>
+
+
+#ifndef CHAR_T
+# define CHAR_T char
+# define W(o) o
+# define OPEN_MEMSTREAM open_memstream
+#endif
+
+#define S(s) S1 (s)
+#define S1(s) #s
+
+
+static void
+mcheck_abort (enum mcheck_status ev)
+{
+ printf ("mecheck failed with status %d\n", (int) ev);
+ exit (1);
+}
+
+
+static int
+do_test (void)
+{
+ mcheck_pedantic (mcheck_abort);
+
+ CHAR_T *buf = (CHAR_T *) 1l;
+ size_t len = 12345;
+ FILE *fp = OPEN_MEMSTREAM (&buf, &len);
+ if (fp == NULL)
+ {
+ printf ("%s failed\n", S(OPEN_MEMSTREAM));
+ return 1;
+ }
+
+ if (fflush (fp) != 0)
+ {
+ puts ("fflush failed");
+ return 1;
+ }
+
+ if (len != 0)
+ {
+ puts ("string after no write not empty");
+ return 1;
+ }
+ if (buf == (CHAR_T *) 1l)
+ {
+ puts ("buf not updated");
+ return 1;
+ }
+ if (buf[0] != W('\0'))
+ {
+ puts ("buf[0] != 0");
+ return 1;
+ }
+
+ buf = (CHAR_T *) 1l;
+ len = 12345;
+ if (fclose (fp) != 0)
+ {
+ puts ("fclose failed");
+ return 1;
+ }
+
+ if (len != 0)
+ {
+ puts ("string after close with no write not empty");
+ return 1;
+ }
+ if (buf == (CHAR_T *) 1l)
+ {
+ puts ("buf not updated");
+ return 1;
+ }
+ if (buf[0] != W('\0'))
+ {
+ puts ("buf[0] != 0");
+ return 1;
+ }
+
+ free (buf);
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"