Brainf*ckってかんたんだな〜

C++ 



#include 

#include 

#include 
void eval(const char* data, int length);
char g_memory_arr[30000];

char* g_memory = &g_memory_arr[0];
int main()

{

	const char* prog = "+++++++++[>++++++++>+++++++++++>+++++<<<-]>.>++.+++++++..+++.>-.------------.<++++++++.--------.+++.------.--------.>+.";

	eval( prog, strlen(prog) );

}
void eval(const char* data, int length)

{

	while( length ) {

		switch( *data ) {

			case '>': g_memory++; break;

			case '<': g_memory--; break;

			case '+': (*g_memory)++; break;

			case '-': (*g_memory)--; break;

			case '.': putchar(*g_memory); break;

			case ',': *g_memory = getchar(); break;

			case '[': 

				{

					if(!*g_memory) { data = std::find( data, data+length, ']' ); }

					else { eval( data+1, length-1 ); continue; }

				}

				break;

			case ']': return;

		}

		data++;

		length--;

	}

}

いや、書けませんけどねｗｗ