Cast argument to isspace to 'unsigned char'. Otherwise, if base char

type is signed, and a specific value is 8-bit and so negative,
we get implicit char->int conversion that does sign-extending. However,
the 'isspace' function requires that the value be either representable in
'unsigned char', or be EOF.


[SVN r31765]

1 files changed, 0 insertions, 0 deletions

diff --git a/libs/program_options b/libs/program_options
-Subproject e1d38380f45b4384258b7093a1518a05b113e76
+Subproject 3400019810b2bf977c957d942b116d765fbea4b