Define and array initialisation

[Michael]

Hi all,

I have got a simple question about the
#define command: Can I use it for array
initialisation?

E.g.

#define ARRAYINIT { {0, 1}, {2,3} }

....
int main ( void )
{
int somestuff[][] = ARRAYINIT;
...
}

Thanks,
Michael

 

[Alex Fraser]

I have got a simple question about the
#define command: Can I use it for array
initialisation?

E.g.

#define ARRAYINIT { {0, 1}, {2,3} }

...
int main ( void )
{
int somestuff[][] = ARRAYINIT;
...
}

Yep. After the preprocessing phase the source will read:

....
int main ( void )
{
int somestuff[][] = { {0, 1}, {2,3} };
...
}

Alex

 

[Michael]

Yep. After the preprocessing phase the source will read:

...
int main ( void )
{
int somestuff[][] = { {0, 1}, {2,3} };
...
}

Alex

Hi Alex,

thanks for the quick response.
Regards
Michael

 

[Emmanuel Delahaye]

Yep. After the preprocessing phase the source will read:

...
int main ( void )
{
int somestuff[][] = { {0, 1}, {2,3} };
...
}

That is not C.

int somestuff[][2] = { {0, 1}, {2,3} };

 

[Emmanuel Delahaye]

I have got a simple question about the
#define command: Can I use it for array
initialisation?

#define ARRAYINIT { {0, 1}, {2,3} }
...
int main ( void )
{
int somestuff[][] = ARRAYINIT;
...
}

Yes, but the dimensions of the array should be added

int somestuff[2][2] = ARRAYINIT;

only the lefmost dimension can be ommited :

int somestuff[][2] = ARRAYINIT;

 

[Michael]

Yes, but the dimensions of the array should be added

int somestuff[2][2] = ARRAYINIT;

only the lefmost dimension can be ommited :

int somestuff[][2] = ARRAYINIT;

Hi,

yeah, my compiler already complaint about that. But I got
an other question. My compiler complains about an Yx1 array
like:

int somestuff[6][1] = { {1}, {1}, {1}, {1}, {1}, {1} };

I know, I can do it with one dimension, but due the programm
structure I would prefer to realize the above array.
Is the a chance?
Thanks,
Michael

 

[Emmanuel Delahaye]

My compiler complains about an Yx1 array
like:

int somestuff[6][1] = { {1}, {1}, {1}, {1}, {1}, {1} };

I know, I can do it with one dimension, but due the programm
structure I would prefer to realize the above array.

or

int somestuff[][1] = { {1}, {1}, {1}, {1}, {1}, {1} };

Well, I don't see what does your compiler complain about. Sounds good to me.
Must be something else.

 

[Michael]

Emmanuel Delahaye wrote:
[...]

Well, I don't see what does your compiler complain about. Sounds good to me.
Must be something else.

Exactly. You are right it was something else.
Thanks again ....
Michael