Only initialize the streams cout/wcout/cerr/wcerr etc once, rather than any time Init::Init is called. Fixes PR#43300
llvm-svn: 371864
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 7b81a13bfcd1d92f478109f1c87971dafba639d2
diff --git a/src/iostream.cpp b/src/iostream.cpp
index 0a5d6e8..ad1920a 100644
--- a/src/iostream.cpp
+++ b/src/iostream.cpp
@@ -97,7 +97,13 @@
#endif
}
-ios_base::Init::Init()
+class DoIOSInit {
+public:
+ DoIOSInit();
+ ~DoIOSInit();
+};
+
+DoIOSInit::DoIOSInit()
{
force_locale_initialization();
@@ -126,7 +132,7 @@
#endif
}
-ios_base::Init::~Init()
+DoIOSInit::~DoIOSInit()
{
#ifndef _LIBCPP_HAS_NO_STDOUT
ostream* cout_ptr = reinterpret_cast<ostream*>(cout);
@@ -141,4 +147,13 @@
wclog_ptr->flush();
}
+ios_base::Init::Init()
+{
+ static DoIOSInit init_the_streams; // gets initialized once
+}
+
+ios_base::Init::~Init()
+{
+}
+
_LIBCPP_END_NAMESPACE_STD