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haha...not quite my first post, glad you like the name, and thanks for the code help :)

Now to just delete this thread...

OK...so how do I go about fixing this? Like I said, I'm fairly new to C, I'm not sure how it all works yet...

Yeah, I only have save, go advanced, and cancel (just for the first post)......too late, I guess?

Thanks so much! Sorry to keep asking questions but I'm not 100% sure how to fix this here...it crashes (at some point in the program) when I try declaring modelfile as either:

char *modelfile[19];...

I tried that, I can't see where it lets you delete.

EDIT: I feel kind of dumb, I just forgot to assign the third float in fscanf to a variable....it all works well now. How do I delete this?

So I'm writing a function in my program which will, among other things, open a bunch of files and read data from them through a for loop. The file names are in the format "Lightcurves\modelB.##.mag"...

But I need the * so I can pass it to fopen()...when I remove the * from *modelfile I get a few problems, most importantly that it no longer opens the files. Also...which functions should I be...

OK! I've slightly (haha, slightly...) modifed my code. The good news is, it compiles and then opens up all the files! The bad news is, even though it compiles and runs, I get warnings when I compile....

OK, new development, so this always fails the first time through, but then on subsequent loops, it opens up the file just fine....

Yes, but I'm trying to read files that already exist, not write to new ones. It's not finding the files when I build the string, but it is finding them when I type in the same string manually.

Erm, if I'm not being totally clear here, basically the issue is that when I create the string by adding together different bits, it doesn't find the file, but when I create the same string by typing...

Ah, works like a charm--thanks so much! Now, when I try to open the file, it doesn't quite work. I know I'm pointing to the right location because the file does open when, after all that code, I say...

Thanks so much! I have it working pretty much perfectly. The one thing is that, when I add it into the loop (so instead of making inc[]="00", I make it equal that when i=0 in the for loop), I get...

It crashes at the sprintf.

All I want to do is make a string saying "modelB.00", "modelB.05", etc., for i=0, 5, etc., this really shouldn't be this difficult--is there not another way to do this?

Ooh, sorry, forgot to mention, modelname is defined globally as:

char *modelname = "modelB.";

I'm really sorry, I don't quite know enough about pointers to pick that up right away, I'm learning as I go along...how do I fix this?

Note: The reason I'm using modelfile as a pointer is because...

Here's new code. I removed the print but I'm getting a similar error when I use the string inc to make a new string. Here:


int i;
char *modelfile;
char inc[10];
for (i = 0; i...

Thanks! This works but my program now crashes when I try :) I mean, assuming my code makes the string properly, this isn't a big deal if all I can't do is print it, but I'd still like to fix it....

This is probably very basic but I'm not sure where I'm going wrong here...I want to have a loop going through numbers from 0 through 90 in increments of 5, and making them into strings ("00", "05",...

Thanks! Got it now :)

I'm using scanf to read floats from input and want to put in error handling to detect when the user is inputting something that isn't a number (that is, a string). When I type in a string, it seems...

Got it, thanks!

Ahh, OK. How do I round, then? The round functions I've found round it to the nearest integer. Is there an easier way than multiplying by 10^x first?

I'm using fscanf to input floats from a file, how do I specify the number of decimal places I want read? The inputs are things like "123.456" and not "123.4560000" (or, as sometimes happens,...