https://bugs.llvm.org/show_bug.cgi?id=47302
Bug ID: 47302
Summary: mingw-w64: std::wcout after _setmode(_fileno(stdout),
_O_WTEXT) doesn't work
Product: libc++
Version: 10.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: nguyen.long.908...@gmail.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Take this code snippet:
#include <iostream>
#include <io.h>
#include <fcntl.h>
int wmain(int argc, const wchar_t* argv[])
{
_setmode(_fileno(stdout), _O_WTEXT);
std::wcout << L"Thử nghiệm\n";
return 0;
}
On MS STL, this correctly outputs the string, but on libc++ it outputs nothing.
Additional notes:
Add -municode when compiling with clang, and add /utf-8 when compiling with
MSVC
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