1 files changed, 56 insertions, 0 deletions
diff --git a/malloc/tst-trim1.c b/malloc/tst-trim1.c
new file mode 100644
index 0000000000..310707e0e1
--- /dev/null
+++ b/malloc/tst-trim1.c
@@ -0,0 +1,56 @@
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define N 10000
+
+static void *arr[N];
+
+static int
+do_test (void)
+{
+  for (int i = 0; i < N; ++i)
+    {
+      size_t size = random () % 16384;
+
+      if ((arr[i] = malloc (size)) == NULL)
+	{
+	nomem:
+	  puts ("not enough memory");
+	  return 0;
+	}
+
+      memset (arr[i], size, size);
+    }
+
+  void *p = malloc (256);
+  if (p == NULL)
+    goto nomem;
+  memset (p, 1, 256);
+
+  puts ("==================================================================");
+
+  for (int i = 0; i < N; ++i)
+    if (i % 13 != 0)
+      free (arr[i]);
+
+  puts ("==================================================================");
+
+  malloc_trim (0);
+
+  puts ("==================================================================");
+
+  p = malloc (30000);
+  if (p == NULL)
+    goto nomem;
+
+  memset (p, 2, 30000);
+
+  malloc_trim (0);
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"