From b0b1710ba631f3a3a3faad6e955ef703c67cb967 Mon Sep 17 00:00:00 2001
From: ppedrot
Date: Thu, 8 Nov 2012 17:11:59 +0000
Subject: Monomorphized a lot of equalities over OCaml integers, thanks to the
 new Int module. Only the most obvious were removed, so there are a lot more
 in the wild.

This may sound heavyweight, but it has two advantages:

1. Monomorphization is explicit, hence we do not miss particular
optimizations of equality when doing it carelessly with the generic
equality.

2. When we have removed all the generic equalities on integers, we
will be able to write something like "let (=) = ()" to retrieve all
its other uses (mostly faulty) spread throughout the code, statically.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@15957 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 lib/cArray.ml | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

(limited to 'lib/cArray.ml')

diff --git a/lib/cArray.ml b/lib/cArray.ml
index bdc084f44b..4615ad0388 100644
--- a/lib/cArray.ml
+++ b/lib/cArray.ml
@@ -280,8 +280,9 @@ let smartmap f ar =
           Array.init ar_size copy
 
 let map2 f v1 v2 =
-  if Array.length v1 <> Array.length v2 then invalid_arg "Array.map2";
-  if Array.length v1 == 0 then
+  if not (Int.equal (Array.length v1) (Array.length v2)) then
+    invalid_arg "Array.map2";
+  if Int.equal (Array.length v1) 0 then
     [| |]
   else begin
     let res = Array.create (Array.length v1) (f v1.(0) v2.(0)) in
@@ -292,8 +293,9 @@ let map2 f v1 v2 =
   end
 
 let map2_i f v1 v2 =
-  if Array.length v1 <> Array.length v2 then invalid_arg "Array.map2";
-  if Array.length v1 == 0 then
+  if not (Int.equal (Array.length v1) (Array.length v2)) then
+    invalid_arg "Array.map2";
+  if Int.equal (Array.length v1) 0 then
     [| |]
   else begin
     let res = Array.create (Array.length v1) (f 0 v1.(0) v2.(0)) in
@@ -306,7 +308,7 @@ let map2_i f v1 v2 =
 let map3 f v1 v2 v3 =
   if Array.length v1 <> Array.length v2 ||
      Array.length v1 <> Array.length v3 then invalid_arg "Array.map3";
-  if Array.length v1 == 0 then
+  if Int.equal (Array.length v1) 0 then
     [| |]
   else begin
     let res = Array.create (Array.length v1) (f v1.(0) v2.(0) v3.(0)) in
@@ -318,7 +320,7 @@ let map3 f v1 v2 v3 =
 
 let map_left f a = (* Ocaml does not guarantee Array.map is LR *)
   let l = Array.length a in (* (even if so), then we rewrite it *)
-  if l = 0 then [||] else begin
+  if Int.equal l 0 then [||] else begin
     let r = Array.create l (f a.(0)) in
     for i = 1 to l - 1 do
       r.(i) <- f a.(i)
@@ -328,7 +330,7 @@ let map_left f a = (* Ocaml does not guarantee Array.map is LR *)
 
 let iter2 f v1 v2 =
   let n = Array.length v1 in
-  if Array.length v2 <> n then invalid_arg "Array.iter2"
+  if not (Int.equal (Array.length v2) n) then invalid_arg "Array.iter2"
   else for i = 0 to n - 1 do f v1.(i) v2.(i) done
 
 let pure_functional = false
-- 
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