g++ (or libstdc++ to be more exact) failed on the following simple testcase:
#include <iostream>
#include <fstream>
#include <cstdlib>
int main()
{
try {
const size_t bufsize = 2252778560;
char* buf = new char[bufsize];
std::memset(buf, 0x22, bufsize);
std::ofstream o("test.data");
o.write(buf, bufsize);
if (o.fail()) {
std::cerr << " write failed, rdstate: " << o.rdstate() << std::endl;
if (o.bad()) {
std::cerr << "bad\n";
}
}
}
catch (...) {
std::cerr << "exception!\n";
}
}
output of the program :
./a.out
write failed, rdstate: 1 bad
when it was compiled with g++ 4.1.2
with g++ 3.2.3 the test works fine
sample compiler invocation:
/gcc/v4.1.2p1/bin/g++ -m64 test_write.cpp
--
Summary: file stream error writing large buffers
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: satyaakam at yahoo dot co dot in
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32916
