Make this operator bool() explicit to match the standard library.

llvm-svn: 210072

1 files changed, 2 insertions, 5 deletions

diff --git a/llvm/include/llvm/Support/system_error.h b/llvm/include/llvm/Support/system_error.h
index 9d300fb9915..8b3d9cc0c70 100644
--- a/llvm/include/llvm/Support/system_error.h
+++ b/llvm/include/llvm/Support/system_error.h
@@ -753,11 +753,8 @@ public:
 
   std::string message() const;
 
-  typedef void (*unspecified_bool_type)();
-  static void unspecified_bool_true() {}
-
-  operator unspecified_bool_type() const { // true if error
-    return _val_ == 0 ? nullptr : unspecified_bool_true;
+  LLVM_EXPLICIT operator bool() const {
+    return _val_ != 0;
   }
 };