Thread: brain........ interpreter

Ok, so i think there is something wrong with this because it was way too simple to write. I know it's a simple language, but still.

I actually have no clue about the language, so could anyone with any background in brain........ help me out here?

Also, I think I got the general idea of brain........ loops wrong.

and, no functions, I know. Give me a break, I'm 14.

Code:

#include <stdio.h>

int main(int argc, char *argv[]){
	int array[30000];
	long int currentByte = 0;
	char currentInput;
	
	if(argc > 2){
		printf("You sent too many arguments!\n");
		return 0;
	}else if(argc < 2){
		printf("You didn't send any arguments!\n");
		return 0;
	}
	
	FILE *fp;
	
	if( (fp = fopen(argv[1], "r")) == NULL){
		
		printf("File doesn't exist!");
		return 0;
	}
whileloop:
	while((currentInput = fgetc(fp))!=EOF && currentInput != '['){
		if(currentInput == '>'){
			currentByte++;
		}
		if(currentInput == '<'){
			currentByte--;
		}
		if(currentInput == '+'){
			array[currentByte]++;
		}
		if(currentInput == '-'){
			array[currentByte]++;
		}
		if(currentInput == '.'){
			printf("%d\n",array[currentByte]);
		}
		if(currentInput == ','){
			array[currentByte] = fgetc(stdin);
		}
	}
	if(currentInput == '['){
		goto whileloop;
	}
	return 0;
}

The language is called "brainphuck", with an f. You can read about it on Wikipedia.

The only place for a goto is when you're nested inside a number of loops, and need to break out of more than one loop, at a time. Other than that, goto's should be gone.

To get good help, the OP is going to have to ask good questions, and that's not the case here, so far.

Show the input you are having problems with, and the output you want. Not many of us will be familiar with bfk, and will be lost without something to refer to as an example.

What a language! Makes me laugh just to look at it.