[reactos] 03/04: [CMD] SHIFT: Use _istdigit().

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=95466904db08f0174164b…

commit 95466904db08f0174164bf20844343982d796d3e
Author:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
AuthorDate: Sat Sep 12 17:00:42 2020 +0200
Commit:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
CommitDate: Sun Sep 13 22:50:10 2020 +0200

    [CMD] SHIFT: Use _istdigit().
---
 base/shell/cmd/shift.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/base/shell/cmd/shift.c b/base/shell/cmd/shift.c
index e3ce5b106d9..fd2873d2541 100644
--- a/base/shell/cmd/shift.c
+++ b/base/shell/cmd/shift.c
@@ -65,7 +65,7 @@ INT cmd_shift (LPTSTR param)
     {
         if (*param == _T('/'))
         {
-            if (param[1] < '0' || param[1] > '9')
+            if (!_istdigit(param[1]))
             {
                 error_invalid_switch(param[1]);
                 return 1;