Static structure

Hello everyone,

I'm trying to accomplish a static structure but fail miserably. If I define them non static everything works as it should, but trying to define it static fails by all google-solutions. Therefore my post here!

My Code:
structure in Genre.h

Code:

struct genre{
	int id;
	string name;
	int score;
};

Code:

class iDNA {
	private:
		static genre _go_genre[1750];

Code:

void iDNA::loadDefaults() {
[...]
		while (res->next()) {
			_go_genre[li_count].name = res->getString("name");
			li_count++;
		}

Error:

iDNA.o: In function `iDNA::loadDefaults()':
iDNA.cpp: (.text+0x319): undefined reference to `iDNA::_go_genre'
collect2: ld returned 1 exit status
make: *** [iDNA] Error 1

OS: Arch Linux x86
Compiler: gcc version 4.4.2 (GCC)
Linker: GNU ld (GNU Binutils) 2.20.0.20091101

Hopefully I provided enough information. If not just ask for more!


Thanks in advance,

Arjan Gelderblom

You probably forgot to define the array. In a source file, write:

Code:

genre iDNA::_go_genre[1750];

By the way, avoid using names that begin with underscores since they may be reserved to the compiler and standard library implementation. In this case because the underscore is followed by a lowercase letter, and the name is at class scope, it is okay, but still

Wow, lightning fast answer! And i

Originally Posted by laserlight

You probably forgot to define the array. In a source file, write:

Code:

genre iDNA::_go_genre[1750];

Isn't this done by the first part of the code with:

Code:

class iDNA {
	private:
		static genre _go_genre[1750];

Originally Posted by laserlight

By the way, avoid using names that begin with underscores since they may be reserved to the compiler and standard library implementation. In this case because the underscore is followed by a lowercase letter, and the name is at class scope, it is okay, but still

Thanks for pointing this out... Will change this right away!

Thanks, Bloged

Originally Posted by Bloged

Isn't this done by the first part of the code with:

No, that is just a declaration.