Re: debugging problem

From:
red floyd <no.spam@here.dude>
Newsgroups:
comp.lang.c++
Date:
Mon, 25 Feb 2008 10:39:26 -0800
Message-ID:
<9_Dwj.58776$Pv2.25254@newssvr23.news.prodigy.net>
Ron Eggler wrote:

Hi,

I'm developing software for Linux on my desktop. The software gets compiled
and the binary is downloaded to the target system where i can't install a
debugging system or something.
I've written following code:
#ifdef INIT_REPORT
        std::ofstream out("/usr/share/NovaxTSP/INITreport.txt", std::ios_base::in |
std::ios_base::out | std::ios_base::app);


Is this combination of flags legit?

    if(!out) { // if out couldn't be opened, print error and exit
        std::cout << "Cannot open reportfile:
\"/usr/share/NovaxTSP/INITreport.txt\"." << std::endl;


Odds are good that errno is probably valid here, assuming you're using
gcc. Try adding:

#include <cerrno>
#include <cstdio>

at the top, and adding

std::cout << std::strerror(errno)

in your error message.

        exit(0);
        }
        std::string str = newLine + "\n";
        out << newLine.c_str() << std::endl;
        out.close();
#endif

The problem is, it works just fine on my desktop but it returns
with "/usr/share/NovaxTSP/INITreport.txt" on the target system. I'm root
and i do have write access to /usr/share/NovaxTSP/. I have
tried "touch /usr/share/NovaxTSP/INITreport.txt" but this didn't help
either.
df -h shows that I'm not running out of space either
Does any one have any other idea what could go wrong?

Thanks,
Ron

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