Add static cast to unsigned char whenever a character classification function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/PathV2.cpp b/lib/Support/PathV2.cpp
index 98d7382..41add96 100644
--- a/lib/Support/PathV2.cpp
+++ b/lib/Support/PathV2.cpp
@@ -44,7 +44,8 @@
#ifdef LLVM_ON_WIN32
// C:
- if (path.size() >= 2 && std::isalpha(path[0]) && path[1] == ':')
+ if (path.size() >= 2 && std::isalpha(static_cast<unsigned char>(path[0])) &&
+ path[1] == ':')
return path.substr(0, 2);
#endif