Impl win subprocess.

1 files changed, 7 insertions, 10 deletions

diff --git a/src/base/Base.cpp b/src/base/Base.cpp
index 49b0c462..7dd6337d 100644
--- a/src/base/Base.cpp
+++ b/src/base/Base.cpp
@@ -9,8 +9,6 @@ namespace cru {
 void UnreachableCode() { std::terminate(); }
 void NotImplemented() { std::terminate(); }
 
-static constexpr auto NO_MESSAGE = "No message.";
-
 Exception::Exception(std::string message, std::shared_ptr<std::exception> inner)
     : message_(std::move(message)), inner_(std::move(inner)) {}
 
@@ -18,11 +16,8 @@ Exception::~Exception() {}
 
 const char* Exception::what() const noexcept { return message_.c_str(); }
 
-void Exception::AppendMessage(const std::string& additional_message) {
-  AppendMessage(std::string_view(additional_message));
-}
-
 void Exception::AppendMessage(std::string_view additional_message) {
+  if (additional_message.empty()) return;
   message_ += ' ';
   message_ += additional_message;
 }
@@ -32,15 +27,17 @@ void Exception::AppendMessage(
   if (additional_message) AppendMessage(*additional_message);
 }
 
-ErrnoException::ErrnoException() : ErrnoException(NO_MESSAGE) {}
+ErrnoException::ErrnoException() : ErrnoException("") {}
 
 ErrnoException::ErrnoException(int errno_code)
-    : ErrnoException(NO_MESSAGE, errno_code) {}
+    : ErrnoException("", errno_code) {}
 
 ErrnoException::ErrnoException(std::string_view message)
     : ErrnoException(message, errno) {}
 
 ErrnoException::ErrnoException(std::string_view message, int errno_code)
-    : Exception(std::format("{} Errno is {}.", message, errno_code)),
-      errno_code_(errno_code) {}
+    : Exception(std::format("Errno is {}.", errno_code)),
+      errno_code_(errno_code) {
+  AppendMessage(message);
+}
 }  // namespace cru