File 5585-filename-Stricten-tests-for-integers.patch of Package erlang

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File 5585-filename-Stricten-tests-for-integers.patch of Package erlang (Revision 371fc947ce89baa340e0441f200e4667)

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From 3ad38446a58ab56b1f3aab6f7052da84b2bb9e78 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Wed, 22 Jun 2022 06:38:52 +0200
Subject: [PATCH 5/7] filename: Stricten tests for integers

---
 lib/stdlib/src/filename.erl | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl
index 8bf4e97b9f..fc8e8110a0 100644
--- a/lib/stdlib/src/filename.erl
+++ b/lib/stdlib/src/filename.erl
@@ -78,8 +78,10 @@
 
 -include_lib("kernel/include/file.hrl").
 
--define(IS_DRIVELETTER(Letter),(((Letter >= $A) andalso (Letter =< $Z)) orelse
-				((Letter >= $a) andalso (Letter =< $z)))). 
+-define(IS_DRIVELETTER(Letter),
+        (is_integer(Letter)
+         andalso (($A =< Letter andalso Letter =< $Z)
+                  orelse ($a =< Letter andalso Letter =< $z)))).
 
 %% Converts a relative filename to an absolute filename
 %% or the filename itself if it already is an absolute filename
@@ -333,8 +335,7 @@ dirname([$/|Rest], Dir, File, Seps) ->
 dirname([DirSep|Rest], Dir, File, {DirSep,_}=Seps) when is_integer(DirSep) ->
     dirname(Rest, File++Dir, [$/], Seps);
 dirname([Dl,DrvSep|Rest], [], [], {_,DrvSep}=Seps)
-  when is_integer(DrvSep), ((($a =< Dl) and (Dl =< $z)) or
-			    (($A =< Dl) and (Dl =< $Z))) ->
+  when is_integer(DrvSep), ?IS_DRIVELETTER(Dl) ->
     dirname(Rest, [DrvSep,Dl], [], Seps);
 dirname([Char|Rest], Dir, File, Seps) when is_integer(Char) ->
     dirname(Rest, Dir, [Char|File], Seps);
@@ -757,7 +758,8 @@ win32_split([X, $\\|Rest]) when is_integer(X) ->
     win32_split([X, $/|Rest]);
 win32_split([X, Y, $\\|Rest]) when is_integer(X), is_integer(Y) ->
     win32_split([X, Y, $/|Rest]);
-win32_split([UcLetter, $:|Rest]) when UcLetter >= $A, UcLetter =< $Z ->
+win32_split([UcLetter, $:|Rest])
+  when is_integer(UcLetter), $A =< UcLetter, UcLetter =< $Z ->
     win32_split([UcLetter+$a-$A, $:|Rest]);
 win32_split([Letter, $:, $/|Rest]) ->
     split(Rest, [], [[Letter, $:, $/]], win32);
-- 
2.35.3

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File 5585-filename-Stricten-tests-for-integers.patch of Package erlang (Revision 371fc947ce89baa340e0441f200e4667)

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