CODEWITHSUNDEEP
c++macros
altariste
altariste

Reputation: 327

generating method name in a macro

I need to automatically prepend method name to some logging messages. I've been using __FUNCTION__ to do it but it generates the fully qualified name of the method ( namespace::class:method ). So it's wasting a lot of space and makes logs less readable. Is there any way to append only the method name in a MACRO, without any unnecessary qualifiers?

Upvotes: 2

Views: 542

Answers (2)

Patrick
Patrick

Reputation: 23619

Write a function that takes a char* argument and returns a pointer to the function name in it. Then write

MyFunction(FUNCTION)

Instead of 

FUNCTION

This has also the advantage that you can dynamically switch between short and long names.

Upvotes: 1

anon
anon

Reputation:

If your logging code looks like this:

#define LOGCALL \
    clog << "Called " << __FUNCTION__ << endl;

then you can simply write a global function to trim the function name as required and say:

#define LOGCALL \
    clog << "Called " << MyTrim( __FUNCTION__ ) << endl;

Upvotes: 1

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