Re: Having trouble with streams....

From:
joseph cook <joecook@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Mon, 10 Aug 2009 10:20:25 -0700 (PDT)
Message-ID:
<04a0b37d-b6ad-4859-be03-1794cfb2221e@e34g2000vbm.googlegroups.com>
On Aug 10, 1:05 pm, SpreadTooThin <bjobrie...@gmail.com> wrote:

This constructor is causing the application to crash on Mac OS X, in
xcode...

dbgFile::dbgFile(void) : std::ostream(0), output_buffer(),
indent_buffer(&output_buffer), isopen(false) {}

here is part of the class definition:
class dbgFile : public std::ostream {
private:
    std::filebuf output_buffer;
    dbgBuf indent_buffer;
    std::stack<std::string> s;
    int stack_level;
    bool isopen;

}

I suspect that std::ostream(0) is the culprit, but not sure how to
tell...


A debugger would tell you.

Why are you initializing the ostream with 0? Don't you want it
default-constructed?

Be careful inheriting from std::ostream. You can't try and use this
class polymorphically.

You haven't posted enough code to be able to say what is the first
thing crashing your code. (You are using types not defined in this
post).

Get comfortable with the debugger, it will be worth it in the short
and long run.

Joe

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