Index: uspace/lib/c/test/stdlib.c
===================================================================
--- uspace/lib/c/test/stdlib.c	(revision 379db9efebb974024006a4fe8299aa4a4f9ca63c)
+++ uspace/lib/c/test/stdlib.c	(revision 379db9efebb974024006a4fe8299aa4a4f9ca63c)
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2018 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/**
+ * @file
+ * @brief Test formatted input (scanf family)
+ */
+
+#include <pcut/pcut.h>
+#include <stdlib.h>
+
+PCUT_INIT;
+
+PCUT_TEST_SUITE(stdlib);
+
+PCUT_TEST(decls)
+{
+	/* Make sure size_t is defined */
+	size_t sz = 0;
+	(void) sz;
+
+	/* Make sure wchar_t is defined */
+	wchar_t wc = L'\0';
+	(void) wc;
+
+	/* Make sure EXIT_FAILURE and EXIT_SUCCESS are defined */
+	if (0)
+		exit(EXIT_FAILURE);
+	if (0)
+		exit(EXIT_SUCCESS);
+
+	/* Make sure NULL is defined */
+	void *ptr = NULL;
+	(void) ptr;
+}
+
+/** Integer division */
+PCUT_TEST(div_func)
+{
+	div_t d;
+
+	d = div(41, 7);
+	PCUT_ASSERT_INT_EQUALS(5, d.quot);
+	PCUT_ASSERT_INT_EQUALS(6, d.rem);
+}
+
+/** Long integer division */
+PCUT_TEST(ldiv_func)
+{
+	ldiv_t d;
+
+	d = ldiv(41, 7);
+	PCUT_ASSERT_INT_EQUALS(5, d.quot);
+	PCUT_ASSERT_INT_EQUALS(6, d.rem);
+}
+
+/** Long long integer division */
+PCUT_TEST(lldiv_func)
+{
+	lldiv_t d;
+
+	d = lldiv(41, 7);
+	PCUT_ASSERT_INT_EQUALS(5, d.quot);
+	PCUT_ASSERT_INT_EQUALS(6, d.rem);
+}
+
+PCUT_EXPORT(stdlib);