BIND 10 trac838, updated. c4412dfaa0bb8c6e95cb4476e80b648cfa9288f2 [trac838] Check the value passed to isspace() is not less than 0

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       via  c4412dfaa0bb8c6e95cb4476e80b648cfa9288f2 (commit)
      from  d098ac2ee97872ebcd8366cb700d7d2a5e668b8c (commit)

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- Log -----------------------------------------------------------------
commit c4412dfaa0bb8c6e95cb4476e80b648cfa9288f2
Author: Ocean Wang <wanghaidong at cnnic.cn>
Date:   Wed May 25 15:28:36 2011 +0800

    [trac838] Check the value passed to isspace() is not less than 0

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Summary of changes:
 src/lib/util/encode/base_n.cc |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

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diff --git a/src/lib/util/encode/base_n.cc b/src/lib/util/encode/base_n.cc
index 0e34181..8da3ea5 100644
--- a/src/lib/util/encode/base_n.cc
+++ b/src/lib/util/encode/base_n.cc
@@ -174,8 +174,10 @@ public:
         return (*this);
     }
     void skipSpaces() {
-        while (base_ != base_end_ &&
-               isspace(static_cast<unsigned char>(*base_)))
+        // If *base_ < 0, on Windows platform with Visual Studio compiler
+        // it may trigger _ASSERTE((unsigned)(c + 1) <= 256);
+        // so make sure that the parameter of isspace() is larger than 0
+        while (base_ != base_end_ && ((*base_) >= 0) && isspace(*base_))
         {
             ++base_;
         }