Charley wrote:

50%File size limit exceeded

That looks more like a 2GB file size limit than a compile/run error. The file size limit may well be a feature of the C/C++ standard library on 32 bit architectures, even if the kernel can handle more. -- JDL

On Wednesday 13 October 2004 05:02 pm, Regis FLORET wrote: Are you using a 32 bit or 64 bit machine? Yep I have gotten it to compile (sort of with lots of options on 32 bit) but it will not run to completion. Thanks!

The first time I try to compile your code (called test.cpp) with :

gcc -o test test.cpp

a big link error occured.

I tryed :

gcc -o test test.cpp -lstdc++

Compiled fine and works fine (but I haven't enought space on my hd to run it completly)

Le mer 13/10/2004 à 17:30, Charles Hicks a écrit :

...

When I run the following program (did not write it) on a 32 bit machine it will not compile and run correctly. However if I compile and run it on my 64 bit machine it works fine.

Would appreciate any ideas on this, do you think this is a bug or is there a problem with the compiler or the program?

Thanks for any help you can give!!

Charley

Program

#include <fstream> #include <iostream> #include <iomanip> using namespace std;

int main() { unsigned long long kb = 1024; unsigned long long mb = kb * kb; unsigned long long gb = kb * mb; unsigned long long four_gb = gb * 4; long long ten_gb = gb * 10; int write_count = four_gb / kb;

cout << "kb: " << kb << "\nmb: " << mb << "\ngb: " << gb << "\nfour_gb: " << four_gb << "\nten_gb: " << ten_gb << endl;

unsigned char* buf = new unsigned char[kb]; memset(buf, 0, kb);

double total_writes = write_count; double writes = 0; ofstream os("big_file");

cout << setiosflags(ios::fixed) << setprecision(0);

for (int i = 0; i < write_count; ++i) { os.write((char*)buf, kb);

++writes;

cout << "\r" << setw(3) << (writes / total_writes * 100.0) << "%" << flush; }

os.close();

cout << "\r100%\nFinished..." << endl;

// Open for reading and test seek. ifstream is("big_file"); std::streampos pos = four_gb-1000; // Arbitary position. is.seekg(pos); std::streampos new_pos = is.tellg();

if (pos == new_pos) { cout << "Seek to " << pos << " worked!" << endl; } else { cout << "Seek to " << pos << " failed!" << endl; }

is.close();

return 0; }

Regis FLORET <r.floret@laposte.net> [Wed, 13 Oct 2004 23:02:43 +0200]:

The first time I try to compile your code (called test.cpp) with :

gcc -o test test.cpp

a big link error occured.

Of course it does, you're using the wrong compiler. gcc is the C compiler, for C++ it's c++. c++ knows which additional libraries are necessary (there are others besides libstdc++) and links them in automatically. Philipp