Array within Array Doubt.

[Hennet]

Hello,
I want to create pre-formatted data within a constant struct within other struct, but I get the weird "braces around scalar initializer" from the compiler (Cygwin/warning).
The code is the following

struct {
			char name[60];
			int req;
} tachs;
const struct {
	char name[60];
	struct tachs* tach[3];
} achv[] = {
	{ "What", {//error is displayed here...
			{ "Name1", 1000000 },//error is displayed here...
			{ "Name2", 100000000 },//error is displayed here...
			{ "Name3", 1000000000 },//error is displayed here...
		}//error is displayed here...
	},
	{ "Something", {//error is displayed here...
			{ "Name1", 1 },//error is displayed here...
			{ "Name2", 5 },//error is displayed here...
			{ "Name3", 10 },//error is displayed here...
		}
	},//etc (there were more below in the same way as the ones above.
};

Its php equivalent would be:

$arr = array( "Name", array( array("Name2","1"), array("Name2","2"), array("Name3","3") ), ...etc ); 

I would like to know what I'm doing wrong, tried to google for the error but I didn't find any enlightenment.
Thank you for your time.

[Salem]

You can't create anonymous data that you can just point at, except when the pointer is char* and the thing being pointed to is a "string".

It takes 2 steps

struct tachs data[] = {
			{ "Name1", 1000000 },
			{ "Name2", 100000000 },
			{ "Name3", 1000000000 },
			{ "Name1", 1 },
			{ "Name2", 5 },
			{ "Name3", 10 },
};
const struct {
	char name[60];
	struct tachs* tach[3];
} achv[] = {
	{ "What", { &data[0], &data[1], &data[2] } },
	// and so on
};

[Bayint Naung]

If you are using C99, you could use compound literal.

const struct {
	char name[60];
	struct tachs* tach[3];
} achv[] = {
    { "What",  &(struct tachs) { "Name1", 1000 } , &(struct tachs) { "Name2",100000}, ... },
 

};

[Hennet]

Thanks to both of you,
I've used Bayint Naung's solution.
However I'm now getting 'error: request for member 'req' in something not a structure or union'
when trying to write on 'achv->tach[0].req', when writing to achv->tach[0]->req there is no error upon compiling but when the program runs it crashes at that line (identified with gdb, SIGSEGV).
Writing on achv->name is performed smoothly, however.
Any clues on what I could be doing wrong?
Thank you for your time.

[anduril462]

That's because, when using Baying Naung's solution, you put the values in a portion of read only memory. This is similar to the writable strings issue, and why the following would fail:

char *p = "Some string literal";
strcpy(p, "foo");

However I'm now getting 'error: request for member 'req' in something not a structure or union'
when trying to write on 'achv->tach[0].req'

That's because you have an array of pointers: struct tachs *tach[3], not an array of tachs objects, like so: struct tachs tach[3].

when writing to achv->tach[0]->req there is no error upon compiling but when the program runs it crashes at that line (identified with gdb, SIGSEGV)

Declaring your array as struct tachs *tach[3] means it is an array containing 3 pointers to struct tachs objects. The initialization is only concerned with setting the pointer values to point to a valid struct tachs object. The pointer itself, i.e. the address of the tachs object tach[0] is pointing to, can be changed since that is in writable memory. It says nothing about where the struct tachs objects you define are put. It is putting them in a read-only section of memory. The compiler is then placing the information for the tachs objects in read-only memory. You can modify achv->tach[0], but not achv->tach[0]->req.

You would be better off using something like:

const struct {
	char name[60];
	struct tachs tach[3];      // No asterisk. This is an array of objects, not pointers
} achv[] = {

[Hennet]

Thank you, removing the asterisk did it.