diff --git a/include/fstream b/include/fstream index 332b4747c..711e484e2 100644 --- a/include/fstream +++ b/include/fstream @@ -702,6 +702,7 @@ basic_filebuf<_CharT, _Traits>::close() __file_ = 0; else __rt = 0; + setbuf(0, 0); } return __rt; } diff --git a/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp b/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp new file mode 100644 index 000000000..0f8defcbd --- /dev/null +++ b/test/libcxx/input.output/file.streams/fstreams/fstream.close.pass.cpp @@ -0,0 +1,35 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// + +// template > +// class basic_fstream + +// close(); + +// Inspired by PR#38052 - std::fstream still good after closing and updating content + +#include +#include +#include "platform_support.h" + +int main() +{ + std::string temp = get_temp_file_name(); + + std::fstream ofs(temp, std::ios::out | std::ios::trunc); + ofs << "Hello, World!\n"; + assert( ofs.good()); + ofs.close(); + assert( ofs.good()); + ofs << "Hello, World!\n"; + assert(!ofs.good()); + + std::remove(temp.c_str()); +}