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-rw-r--r--tools/coqdoc/alpha.ml7
1 files changed, 1 insertions, 6 deletions
diff --git a/tools/coqdoc/alpha.ml b/tools/coqdoc/alpha.ml
index f817ed5a2..3d92c9356 100644
--- a/tools/coqdoc/alpha.ml
+++ b/tools/coqdoc/alpha.ml
@@ -26,12 +26,7 @@ let norm_char c =
if !latin1 then norm_char_latin1 c else
Char.uppercase c
-let norm_string s =
- let u = String.copy s in
- for i = 0 to String.length s - 1 do
- u.[i] <- norm_char s.[i]
- done;
- u
+let norm_string = String.map (fun s -> norm_char s)
let compare_char c1 c2 = match norm_char c1, norm_char c2 with
| ('A'..'Z' as c1), ('A'..'Z' as c2) -> compare c1 c2