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-rw-r--r--cpp/src/Slice/Preprocessor.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/cpp/src/Slice/Preprocessor.cpp b/cpp/src/Slice/Preprocessor.cpp
index 30430304020..958facf5f34 100644
--- a/cpp/src/Slice/Preprocessor.cpp
+++ b/cpp/src/Slice/Preprocessor.cpp
@@ -469,7 +469,8 @@ Slice::Preprocessor::printMakefileDependencies(ostream& out, Language lang, cons
{
if(file.compare(0, p->length(), *p) == 0)
{
- string s = includePaths[p - fullIncludePaths.begin()] + file.substr(p->length());
+ string s = includePaths[static_cast<size_t>(p - fullIncludePaths.begin())] +
+ file.substr(p->length());
if(IceUtilInternal::isAbsolutePath(newFile) || s.size() < newFile.size())
{
newFile = s;