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-rw-r--r--test/Lexer/warn_binary_literals.cpp5
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diff --git a/test/Lexer/warn_binary_literals.cpp b/test/Lexer/warn_binary_literals.cpp
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+++ b/test/Lexer/warn_binary_literals.cpp
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+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s -Wc++14-binary-literal
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s -Wc++14-extensions
+
+int x = 0b11;
+// expected-warning@-1{{binary integer literals are a C++14 extension}}