typedef & static

[trekker]

here's the code...

#include <stdio.h>

struct foo {
	int n;
	float k;
};

/*static struct foo {
	int n;
	float k;
};*/

typedef struct foo2 {
	int m;
	float l;
} Foo2;

/*typedef static struct foo2 { // this is wrong
	int m;
	float l;
} Foo2;*/

typedef struct foo2 Foo2; /* this is correct */

int main( void )
{
	return 0;
}

why the declaration of foo2 with both static and typedef
specifiers is not right?

thanks in advance,
trk

[quzah]

/*static struct foo {
	int n;
	float k;
};*/

This is incorrect because static only specifies that an instance of a variable, or a given function, is static. In the above example, you are not creating an instance of a variable, so you cannot declare it static (because you have nothing to declare).

The same reason applies why you couldn't use 'const' here (or automatic).

/*typedef static struct foo2 { // this is wrong
	int m;
	float l;
} Foo2;*/

The same reasoning applies here. You can't use static because you aren't creating an instance.

Thus:

typedef struct foo2 Foo2;

Produces:

static Foo2 myInstance;

Quzah.