https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81338
Bug ID: 81338
Summary: stringstream remains empty after being moved into
multiple times
Product: gcc
Version: 6.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: zxy19980101 at sina dot cn
Target Milestone: ---
Given the code below:
#include <sstream>
#include <iostream>
int main() {
std::stringstream ss;
while (true) {
for (int i = rand() % 10 + 10; i > 0; --i) {
ss << static_cast<char>(rand() % 26 + 'a');
}
std::cout << ss.str() << "\n";
ss = std::stringstream();
}
return 0;
}
The output become blank lines after the first few. The code works on visual
studio 2017.
My g++ version is:
g++.exe (x86_64-posix-seh-rev2, Built by MinGW-W64 project) 6.3.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
