Thread: better way to scanf of a array of structs member?

Hi,

I have a matrix held in a text file, and I want it to go into a array of structs, but I can't seem to do it directly:
take my struct first.

Code:

struct xmatst { double ev; int ei;};
struct xmatst *in;

one of the simpler ones :-)

but. in order to get my values from my textfile into that ev member, I need to create another array of doubles called tmpin and do the usual:
f

Code:

or(i = 0; i < N; i++)
		for(j = 0; j < N; j++) {
			fscanf(fp, "%lf", &tmpin[i*N+j]);

And then I need to assign the tmpin values to my "real" array in. I tired to not use tmpin, and in the above assignment I used

Code:

in[i*N+j]->ev

but that gave me an "invalid type argument of ->" error, though I thought that was the way you referenced a pointer to a struct member.

May be the fact that it's an array of structs changes things. If I have to do things this way in C it'll be slower than perl. :-)

eeek! thanks guys, very fast replies, and spot on too!

I'm still getting to know structs, and the -> identifier has me a bit confused.

I should have tried some c zen, and sat back, and just thought about the fundamentals.

however, sometime I betray and go to perl ... :-)