Strings, Files and Integers

[oE6pX9L8]

Hey guys,

I've been stuck on several problems. I'm still an inexperienced programmer of C++, and I've recently learnt arrays, pointers and dynamic memory.

There's two things that I'm having trouble with:
1. Turning an integer into a string.
2. Reading the amount of lines in a text file, and making an array accordingly (i.e. to read a list of weapon names into a game from an external file).

I'm sure there'll be a simple solution that I've probably missed, so I'm sorry about the simplicity of it.

Thanks for your time.
archmage84

[firedraco]

1) http://www.cplusplus.com/articles/numb_to_text/

2) Use an std::vector or a similar container instead. Then you don't have to worry about the size.

[oE6pX9L8]

1) Thanks, I think I'll be able to use that. Much appreciated.

2) Less successful, I'm not experienced at much past while loops and such, so would you mind elaborating on that?

[firedraco]

Instead of doing something like this:

int my_array[SIZE];
//assume there is only SIZE ints in the file
for(unsigned int i = 0; i < SIZE; ++i) {
    //read an int
    my_array[i] = the_int;
}

You can just do something like this:

std::vector<int> my_vector;
while(/*there are still ints in the file*/) {
    //read an int
    my_vector.push_back(the_int); //adds it to the vector
    //no need to care about the size or anything
}

[oE6pX9L8]

Sweet, that looks like what I need :D
Thanks for your help. Is there an article on this?

archmage84