Add std::istr::as_buf for converting to cstrs. Issue #855

1 files changed, 21 insertions, 1 deletions

diff --git a/src/test/stdtest/istr.rs b/src/test/stdtest/istr.rs
index b762e438336..32497a8858b 100644
--- a/src/test/stdtest/istr.rs
+++ b/src/test/stdtest/istr.rs
@@ -264,4 +264,24 @@ fn str_from_cstr() {
     let b = vec::to_ptr(a);
     let c = istr::str_from_cstr(b);
     assert c == ~"AAAAAAA";
-}
\ No newline at end of file
+}
+
+#[test]
+fn as_buf() {
+    let a = ~"Abcdefg";
+    let b = istr::as_buf(a, { |buf|
+        assert *buf == 65u8;
+        100
+    });
+    assert b == 100;
+}
+
+#[test]
+fn as_buf_small() {
+    let a = ~"A";
+    let b = istr::as_buf(a, { |buf|
+        assert *buf == 65u8;
+        100
+    });
+    assert b == 100;
+}