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From: Roy.Browning@p0.f506.n106.z1.fidonet.org (Roy Browning)
Newsgroups: comp.lang.c++
Subject: Pointers to member functions
Message-ID: <6284.279EFF22@urchin.fidonet.org>
Date: 24 Jan 91 03:51:50 GMT
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Organization: FidoNet node 1:106/506.0 - Fulcrum's Edge, Spring TX
Lines: 35

In a message of <Jan 18 22:27>, Craig Jones (1:106/88@fidonet) writes:
 >void fileclass::show()
 >{
 >        ftw(path, &show_file, 100);
 >}                 ^^^^^^^^^^^ Not sure what to put here.
 >                  
 >int fileclass::show_file(char* path, struct stat* status, int depth)
 >{
 >        printf("%s\n", path);
 >        return 0;
 >}

Craig:

        I you declare the "show_file" member to be "static" then create a wrapper function along the following format.

inline _cdecl int
WrapperShow_File(char* path, stat* status, int depth)
{
        return classname::show_file(path, status, depth);
}

If "show_file" isn't static then you have to call it via a specific instance.

inline _cdecl int
WrapperShow_File(char* path, stat* status, int depth)
{
        return instancename.show_file(path, status, depth);
}

Substitute the 'C' wrapper function for the member name in the call to "ftw".  This should work per your request.

                         On the learning C++urve,

                               Roy Browning