1 files changed, 21 insertions, 0 deletions
diff --git a/std/index.zig b/std/index.zig
index 88827dc798..07f06ea07c 100644
--- a/std/index.zig
+++ b/std/index.zig
@@ -2,3 +2,24 @@ pub const Rand = @import("rand.zig").Rand;
 pub const io = @import("io.zig");
 pub const os = @import("os.zig");
 pub const math = @import("math.zig");
+
+pub fn assert(b: bool) {
+    if (!b) unreachable{}
+}
+
+pub const str_eql = slice_eql(u8);
+
+pub fn slice_eql(T: type)(a: []T, b: []T) -> bool {
+    if (a.len != b.len) return false;
+    for (a) |item, index| {
+        if (b[index] != item) return false;
+    }
+    return true;
+}
+
+#attribute("test")
+fn string_equality() {
+    assert(str_eql("abcd", "abcd"));
+    assert(!str_eql("abcdef", "abZdef"));
+    assert(!str_eql("abcdefg", "abcdef"));
+}