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-rw-r--r--lib/Driver/ArgList.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Driver/ArgList.cpp b/lib/Driver/ArgList.cpp
index 30da136e04..7653daf7ee 100644
--- a/lib/Driver/ArgList.cpp
+++ b/lib/Driver/ArgList.cpp
@@ -13,7 +13,9 @@
using namespace clang::driver;
-ArgList::ArgList(const char **ArgBegin, const char **ArgEnd) {
+ArgList::ArgList(const char **ArgBegin, const char **ArgEnd)
+ : NumInputArgStrings(ArgEnd - ArgBegin)
+{
ArgStrings.append(ArgBegin, ArgEnd);
}