[Support] Add a version of sys::fs::equivalent() that treats errors as false.

llvm-svn: 156864

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/include/llvm/Support/FileSystem.h b/llvm/include/llvm/Support/FileSystem.h
index 55565cd639a..4bee20549cd 100644
--- a/llvm/include/llvm/Support/FileSystem.h
+++ b/llvm/include/llvm/Support/FileSystem.h
@@ -309,6 +309,13 @@ bool equivalent(file_status A, file_status B);
 ///          platform specific error_code.
 error_code equivalent(const Twine &A, const Twine &B, bool &result);
 
+/// @brief Simpler version of equivalent for clients that don't need to
+///        differentiate between an error and false.
+inline bool equivalent(const Twine &A, const Twine &B) {
+  bool result;
+  return !equivalent(A, B, result) && result;
+}
+
 /// @brief Get file size.
 ///
 /// @param path Input path.