[clang-tidy] cppcoreguidelines-pro-bounds-pointer-arithmetic: ignore generated pointer arithmetic

Summary:
Inside a range-based for-loop over an array, the compiler
generates pointer arithmetic (end = array + size). Don't flag this.

Reviewers: alexfh, sbenza, bkramer, aaron.ballman

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D14582

llvm-svn: 254182

1 files changed, 2 insertions, 0 deletions

diff --git a/clang-tools-extra/test/clang-tidy/cppcoreguidelines-pro-bounds-pointer-arithmetic.cpp b/clang-tools-extra/test/clang-tidy/cppcoreguidelines-pro-bounds-pointer-arithmetic.cpp
index c8fea8052e5..7cbc6ddf96a 100644
--- a/clang-tools-extra/test/clang-tidy/cppcoreguidelines-pro-bounds-pointer-arithmetic.cpp
+++ b/clang-tools-extra/test/clang-tidy/cppcoreguidelines-pro-bounds-pointer-arithmetic.cpp
@@ -84,4 +84,6 @@ void okay() {
   i = j - 1;
 
   auto diff = p - q; // OK, result is arithmetic
+
+  for(int ii : a) ; // OK, pointer arithmetic generated by compiler
 }