[PATCH] D52949: [Diagnostics] Implement -Wsizeof-pointer-div

[Dávid Bolvanský via Phabricator via cfe-commits]

xbolva00 created this revision.
Herald added a subscriber: cfe-commits.

void test(int *arr) {

  int arr_len = sizeof(arr) / sizeof(*arr);  // warn, incorrect way to compute number of array elements

}

Enabled under -Wall (same behaviour as GCC)


Repository:
  rC Clang

https://reviews.llvm.org/D52949

Files:
  include/clang/Basic/DiagnosticGroups.td
  include/clang/Basic/DiagnosticSemaKinds.td
  lib/Sema/SemaExpr.cpp
  test/Sema/div-sizeof-ptr.c

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