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Pure C - function with optional arguments only

Hi,

I want to declare a function, which has no required parameters, but may have optional, and do it in pure C.

It's simple for functions having at least one parameter:
void my_func( char *sFirst, ... );
and then accessing the optional using arg_list.

I want to define something like
void my_func( ... );
but it's not valid :(

I'll appreciate your help.

sunnycoder

man 3 getopt

something like
while ((ch = getopt(argc, argv, "a:dhf:l:m:np:rs:v")) != EOF)
should serve your purpose

the above line of code is from syslogd source code

SOLUTION

Ajar

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migoEX

ASKER

There is 1 problem left:

I want this function to be exported, and used by "external" functions. If in my H file I declare the function without parameters, the caller won't be able to compile a code, which is passing parameter. And vise versa - if I define it with parameter, a call without passing parameters won't compile.

PS: I'm not sure it's possible :) but may be I'm missing some solution

sunnycoder

Even I would be interested in the solution if this was possible ...

ASKER CERTIFIED SOLUTION

mtmike