ftw.h

[wasson]

Noob here.
gcc complains by stating:
warning: unused parameter ‘status’

1. I do not use stat, so how can I rewrite to omit it ?
2. Can it be rewritten so it can all be done in main rather than calling a function ?

int list(const char *filename, const struct stat *status, int type)
{
	if( (type == FTW_F) && strstr(filename, ".txt") )
	{
		puts(filename);
 	}

	return 0;
}

int main{
	ftw("path-to-folder", list, 1);

	return 0;
}

 

[Salem]

> 1. I do not use stat, so how can I rewrite to omit it ?
You can't.
It's part of the standard interface of ftw().

What you can do however is this:

int list(const char *filename, const struct stat *status [red]__attribute__ ((unused))[/red], int type)
{
    if( (type == FTW_F) && strstr(filename, ".txt") )
    {
        puts(filename);
     }

    return 0;
}

You still get the parameter, but it should stop the compiler complaining about it being unused.

http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html#Variable-Attributes

--
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.