Thread: Reading doubles from text file

Ok so I have some code:

Code:

void loadBuildingImagesInfo()
{
	int count, number;
	double numbertest;
	FILE *infile;
	infile = fopen("BuildingImages.txt", "r");
	for(count = 0; count < 16; count++)
	{
		for(number = 0; number < 32; number++)
		{
			fscanf(infile, "%f", &numbertest);
			printf("%f - ", numbertest);
			buildingImages[count][number] = numbertest;
		}
	}
}

In the textfile I have:
0.55 0.085 0.55 0.16 0.71 0.16

(this is just a few, having 512 numbers on this post is a bit absurd)

However, I cannot seem to get these numbers out, I tried print whats being read out, to test, and its just displaying some random long negative number, this is the first one:

-92559604195412477000000000000000000000000000000000 000000000000.000000

I have no idea how to go about this. both the array is a double and so is numbertest. so not sure. I have tried changing the %f to things like %1.2f etc. but no difference,

Thanks

It is not possible to read a double with scanf using %f. Fortunately, it is possible using %lf.

Originally Posted by tabstop

It is not possible to read a double with scanf using %f. Fortunately, it is possible using %lf.

Ooooo Thanks, never been taught that!