lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 51 insertions, 0 deletions

diff --git a/lib/mlibc/tests/posix/search.c b/lib/mlibc/tests/posix/search.c
new file mode 100644
index 0000000..6b68ef9
--- /dev/null
+++ b/lib/mlibc/tests/posix/search.c
@@ -0,0 +1,51 @@
+#include <search.h>
+#include <assert.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+static int compare(const void *pa, const void *pb) {
+	if (*(int*)pa < *(int*) pb)
+		return -1;
+	if (*(int*)pa > *(int*) pb)
+		return 1;
+	return 0;
+}
+
+static void check_key(int key, void *root) {
+	int keyp = key;
+	void *ret = tfind((void*) &keyp, &root, compare);
+	assert(ret);
+	assert(**((int **) ret) == key);
+}
+
+static void free_key(void *key) {
+	free(key);
+}
+
+int main() {
+	void *root = NULL;
+	for (int i = 0; i < 12; i++) {
+		int *ptr = malloc(sizeof(int));
+		assert(ptr);
+		*ptr = i;
+
+		void *ret = tsearch((void*) ptr, &root, compare);
+		assert(ret);
+		assert(**((int **) ret) == i);
+	}
+
+	// Test a couple of keys
+	check_key(1, root);
+	check_key(5, root);
+	check_key(10, root);
+
+	// Verify NULL on non-existent key
+	int key = -1;
+	void *ret = tfind((void*) &key, &root, compare);
+	assert(ret == NULL);
+
+	// tdelete is not implemented yet (#351)
+	(void)free_key;
+	// tdestroy(root, free_key);
+	return 0;
+}