What does this string format mean in C++?

Question

Ok this might be one of the not-so-smartest questions I have asked in awhile. Sadly, google led me to no answer (neither did stack).

In a C++ dll file, i have this line:

pSDB->setString("Logger\\AppLogger\\fileLoggerFilename", "rfa.{P}.log")

I, for the life of me, cannot find out what the {P} accurately represents. In the directory, I will get logs that look like: 'rfa.6702.log', 'rfa.6829.log', or 'rfa.7024.log'.

I notice they keep increasing. Does this legitimately mean anything in C++, or just a parameter set in the code?

EDIT:

This code is dealing with Reuters connections. The pSDB is:

"rfa::config::StagingConfigDatabase *ConnectionManager"

It's probably a form of generating a unique number, though why it wouldn't just go up by one doesn't make much sense with that. — chris, Sep 21 '12 at 20:51
This was my guess as well. I guess I'm wondering how the number is determined. — jpints14, Sep 21 '12 at 20:53
Regarding your edit, you'll need to read the documentation for whatever type `StagingConfigDatabase` is. — ildjarn, Sep 21 '12 at 20:54
Yea Reuters is notorious for not having that great documentation, especially considering this is a really old API. Don't have access to any form of documentation. — jpints14, Sep 21 '12 at 20:56

score 7 · Accepted Answer · answered Sep 21 '12 at 20:54

7

From here:

The Reuters library replaces the {p} string in the default file name with the UNIX Process ID when it creates the log file.

answered Sep 21 '12 at 20:54

Jesse Good

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That fits quite well. Good find. – chris Sep 21 '12 at 20:55
Dude, I love you. EXCELLENT find. – jpints14 Sep 21 '12 at 20:59

score 2 · Answer 2 · answered Sep 21 '12 at 20:53

2

This has nothing to do with C++. C++ will never look inside your strings. Same is true for "%d" in printf. It is all a matter of what printf() is doing.

To answer your question, you need to refer to the actual object parsing your string.

answered Sep 21 '12 at 20:53

Pavel Radzivilovsky

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score 2 · Answer 3 · answered Sep 21 '12 at 20:53

This is not standard C++. It is defined in what looks like may be a logger library. You should look at the documentation for this parcitular library to find out {P} means. In particular, look at the docs for the setString() method in whatever class you used to declare pSDB.

What does this string format mean in C++?

3 Answers3