Reading data from file using C++?

Question

I have a text file representing time-voltage signal 2 colums of numbers, in scientific format eg.
time voltage
0.003 1.553e-8
... ...

how do I read them into a mx2 matrix using C++?

used to working with C, not familar with C++

Answer 1

You could use class ifstream.

It makes very easy to read from a file as an input stream.

Answer 2

If you are not required to use the C++ library, then use the C one. I always preferred the C one. Even in my college courses, where we were expected to use C++ I was not penalized for using the standard C library. If you are going to school, you might want to double check if this is acceptable. IMO the C++ standard library using too confusing and abstracted of a syntax to be understandable. Plus I knew how to look at standard C code on paper and determine what the result would be, in C++ I wasn't and still can't always do this.

Answer 3

What you have sounds like it reads the information and straight away throws it away. i'm able to comprehend putting it down yet at the same time as (one million) { ch=fgetc(fs); if(ch==EOF) injury; } in simple terms reads, yet would not exhibit or shop, characters. i'm sorry, how do you know it is not reading it?