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Control Flow

2 (2.2%)

Arrays, Strings, Pointers, and References

8 (9%)

Functions

4 (4.5%)

Basic object-oriented programming

30 (33.7%)

A bit more advanced OOP (Composition, Operator overloading, Inheritance, Virtual Functions)

18 (20.2%)

Templates

8 (9%)

Other (Explain)

4 (4.5%)

Working with files?  (Streams)

15 (16.9%)

Total Members Voted: 89

[Normandy]

1. Probably just to make things clearer - i.e. not everyone immediately recognizes that a char can be represented by its ASCII code. Not sure though, but that's just my guess.

2. The error is because that char is signed; a value like 0xCD (which is 205) would fit into an unsigned char (range 0 to 255), but it is truncated because in this case the char is signed (range -128 to 127). The thing is that this sort of thing is a compiler option - some compilers default to signed chars, while others default to unsigned chars.

3. I hope not.

[darius]

3. it (prob) will if you use key value bigger then 255.

[timmeh]

Thanks for the input Blacken, much appreciated!

[ed boy]

If I might suggest a challenge:

Make a program to play tic tac toe. I recently did this to help me learn fortran, and I can say it's been a very helpful exercise.

[alway]

Awesome, thanks!

[timmeh]

If I might suggest a challenge:

Make a program to play tic tac toe. I recently did this to help me learn fortran, and I can say it's been a very helpful exercise.

For anyone that does this if your AI can be beaten, it can still be improved.  I may dig up my Tic-Tac-Toe program later and post it, if anyone wants an example.  Probably just as the .exe at first, so people still have to figure it out on their own.

[Org]

So hey guys.
Org wants to learn more of C++.
Since Org knows little of it. He did make a Zork-like game. Almost.

[Outcast Orange]

That was a good time.

I am here to offer my feeble help.

[Urist McUristy]

I decided I wanted to learn how to code in some language, so I decided to learn C++.
Only thing is I don't know what is a good editor/compiler to use for a beginner...
So I was wondering if someone could help me with that by posting a link to one
thats easy to use, thanks in advance!

[Siquo]

Hi Uristy!

There are basically two camps here:
Code::Blocks, which is free, cross-platform and unprofessional, and uses the GCC compiler.
and
Microsoft VC++, which is professional, although you only get the "express" version for free, it's windows-only (the IDE, in b4 nitpickers), and has its own compiler.

Which to choose? Please don't ask here, before we get into another "My Compiler/IDE Is Better"-flamewar 

[qwertyuiopas]

Either (MSVC's compiler, or any variation of GCC (MinGW (GCC compiling for windows) or Cygwin (compiles like GCC on non-windows, links to a library for functions not present in windows) on windows, GCC everywhere else) can also be invoked from the command prompt or a batch file, though an IDE is usually better in every way... (except startup time)

[eerr]

Edit: oops, Wrong topic.

[ILikePie]

I'm trying to port something a wrote in C# a few months ago to C, and I'm having some issues.

my C# code looks something like this:

Code: [Select]

byte y[] = new byte[88200];

for (t = 0; t < 88200; t++)
  {
  double i = sin(t);
  y[t] = (byte)i;
  }
// ignore syntax errors, they ain't my focus

and my C code looks like so:

Code: [Select]

float *y;
y = (float *) malloc(88200 * sizeof(float));

for (t = 0; t < 88200; t++)
  {
  float i = sin(t);
  *(y + t) = i; // no (byte) caste here :(
  }
// ignore syntax errors, they ain't my focus

The lack of (byte) caste in the C code seems to screw things up. My question is, how do I convert a float to a byte in C?

[qwertyuiopas]

Char is C++'s byte.

[ILikePie]

So I've been told, but I use floats, and have to use floats, because I'm using the sin() function, which, obviously, outputs decimal fractions, and chars don't support decimal fractions.

Never mind, multiplying it by 128 fixes it up, thank you.