libk: add Result<T, E> class

1 files changed, 14 insertions, 0 deletions

diff --git a/libk/test/string.cc b/libk/test/string.cc
new file mode 100644
index 0000000..4d7d340
--- /dev/null
+++ b/libk/test/string.cc
@@ -0,0 +1,14 @@
+#include <string.h>
+
+// strlen
+static_assert(strlen("") == 0);
+static_assert(strlen("0") == 1);
+static_assert(strlen("hello") == 5);
+static_assert(strlen("world") == 5);
+
+// reverse
+static_assert([]() {
+  char s[] = "xyz";
+  reverse(s, strlen(s));
+  return s[0] == 'z' && s[1] == 'y' && s[2] == 'x' && s[3] == '\0';
+}());