Thread: returning multiple arrays from one function to another

I don't know what is the job of
rr_counts(xx_r,yy_r,zz_r,nrows2,nrows3,rad);
What you can do, I suppose is:

Code:

void third_read_file(long double *rad, int *nrows3)
{
	some code
	.
	.
	.
	*nrows3=something;
	rad=(long double *)malloc(sizeof(long double) * *nrows3);

}

void rr_counts(struct DataList *data_list_d,long double *rad, int nrows3)
{
	// here 	xx_r[i] = data_list->data[i].x
	// here 	yy_r[i] = data_list->data[i].y
	// here 	zz_r[i] = data_list->data[i].z
	// here		nrows2  = data_list->size 
 
}
int main(void)
{
    struct DataList data_list_d, data_list_r;
	int nrows3;
	long double *rad;

    if (readFile("file1", &data_list_d))
    {
        printf("there are %d in FIRST data\n", data_list_d.size);
        free(data_list_d.data);
    }

    if (readFile("file2.dat", &data_list_r))
    {
        printf("there are %d in random data\n", data_list_r.size);
        free(data_list_r.data);
    }

    /* The old rr_count 
	rr_counts(xx_r,yy_r,zz_r,nrows2,nrows3,rad); */

    /* The code for the third file read is left as an exercise for the reader. */
	third_read_file(rad,&nrows3);
	rr_counts(data_list,rad,nrows3); 


    return 0;
}

I got it sorted -

so what i did was (for anyone as inept as me):

for the function rr_counts:

Code:

int rr_counts(struct DataList data_list_r) {

for(j=0; j<51; j++) 
    {
     	printf("rr test= %Le\n",data_list_r.data[j].x);

    }	

.
.
.
}

then when called the function in int main:

Code:

rr_counts(data_list_r);

as easy as that!

Originally Posted by giove

I don't know what is the job of
rr_counts(xx_r,yy_r,zz_r,nrows2,nrows3,rad);
What you can do, I suppose is:

Code:

void third_read_file(long double *rad, int *nrows3)
{
	some code
	.
	.
	.
	*nrows3=something;
	rad=(long double *)malloc(sizeof(long double) * *nrows3);

}

void rr_counts(struct DataList *data_list_d,long double *rad, int nrows3)
{
	// here 	xx_r[i] = data_list->data[i].x
	// here 	yy_r[i] = data_list->data[i].y
	// here 	zz_r[i] = data_list->data[i].z
	// here		nrows2  = data_list->size 
 
}
int main(void)
{
    struct DataList data_list_d, data_list_r;
	int nrows3;
	long double *rad;

    if (readFile("file1", &data_list_d))
    {
        printf("there are %d in FIRST data\n", data_list_d.size);
        free(data_list_d.data);
    }

    if (readFile("file2.dat", &data_list_r))
    {
        printf("there are %d in random data\n", data_list_r.size);
        free(data_list_r.data);
    }

    /* The old rr_count 
	rr_counts(xx_r,yy_r,zz_r,nrows2,nrows3,rad); */

    /* The code for the third file read is left as an exercise for the reader. */
	third_read_file(rad,&nrows3);
	rr_counts(data_list,rad,nrows3); 


    return 0;
}

Thanks for your suggestion i'll give that some thought! i just posted how i sorted it with your previous suggestion.

cheers
R.