stuck converting a char to an integer

[cjhawley001]

sorry. was i that unclear? hm, maybe i should start working on my english instead of my programming
but anyways thanks for helping, this forum is great!

best resource i have seen in a long time!!

thanks!!!!!

p.s i will make my self clearer with source code next time and take more consideration with my posts!

-chris

[suthers]

Well feel free to ask any questions, but do make them clearer next time...
Jules

[Solar]

any help or comments(bad or good) welcome..

Just to be sure, I would look at the standard functions strtol() and sprintf() - perhaps you are making your life more difficult than necessary.

[AndrewAPrice]

Cargo Cult is just being nice. The Uni CS classes (at least where I am at) are just ridiculously weak. I don't buy books or even go to my CS classes, except for the exams (we turn our work in via Black Board) and I still get A's and B's.

As a game programmer we're entirely C++. Even the animators take an introductory course (they only get as far as STL), although the game design students have to do prototyping in Dark Basic .

Oh, and we have Rapid Application Development which is C# (the WinForms designer makes it simple to make level editor interfaces and the such rapidly), but altogether C# only constitutes 4.16% of the entire degree.

[AndrewAPrice]

From my own experience, university C++ courses tend to teach cargo cult programming

Thankfully that won't help here I knew a guy who handed in an assignment which was basically copied and pasted bits of our lecturer's sample code put together. He barely got a pass and the comment was something like:
Excellent quality code..
...
..If only you went beyond submitting the code I gave you in class.
So basically, the lecturer was commenting that his own code was of excellent quality!

I think it was him who was working on a physics demo (also made up of copy-and-pasted code he didn't know what it did) and wanted to make a block shoot out from the screen and I managed to convince him the code to do that was:

Code: Select all

throw new Block();

and he was wondering why it was crashing, so he called the lecturer over to look at his code

It's a pity that the fun ones don't last very long. Our programming class has dropped down to around 12 people now.

[Omega]

Hope this doesn't come too late, but I just needed an atoi myself, so here you go:

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int atoi(char* string)
{
	int i = 0;
	int value = 0;
	int zeroValue = '0';       
	const int slen = len(string);
	for (i = 0; i < slen; ++i)
	{
		char c = string[i];
		if (c < '0' || c > '9')
		{
			return -1;
		}
		value = 10 * value + (c - zeroValue);
	}
    return value;
}

Code: Select all

printf("Return = %d","1337");

Output: 1337

Hope you enjoy.

[DeletedAccount]

Solar is correct , make use of the standard functions , Do not reinvent wheel unecesserily .