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-rw-r--r--include/llvm/Support/system_error.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/include/llvm/Support/system_error.h b/include/llvm/Support/system_error.h
index 9d4a8b721e..40f5b3cd7f 100644
--- a/include/llvm/Support/system_error.h
+++ b/include/llvm/Support/system_error.h
@@ -708,8 +708,12 @@ public:
const error_category& category() const {return *_cat_;}
std::string message() const;
- // explicit
- operator bool() const {return _val_ != 0;}
+ typedef void (*unspecified_bool_type)();
+ static void unspecified_bool_true() {}
+
+ operator unspecified_bool_type() const { // true if error
+ return _val_ == 0 ? 0 : unspecified_bool_true;
+ }
};
inline error_condition make_error_condition(errc _e) {
@@ -767,8 +771,12 @@ public:
std::string message() const;
- // explicit
- operator bool() const {return _val_ != 0;}
+ typedef void (*unspecified_bool_type)();
+ static void unspecified_bool_true() {}
+
+ operator unspecified_bool_type() const { // true if error
+ return _val_ == 0 ? 0 : unspecified_bool_true;
+ }
};
inline error_code make_error_code(errc _e) {