brainfuck Archives

[Solved] Why does this Java code behave differently than this C code?

November 25, 2022 by Kirat

These codes are not equal: C version allocates byte array where as Java’s – integer array C version does not do clamping of array elements as Java does So in Java you should make a byte array instead: byte[] tape = new byte[30000]; And remove clamping in adjust() function: // if(tape[dp] < 0) tape[dp] += … Read more

[Solved] Why the brainfuck interpreter in C may not work when executing a program with loops?

September 20, 2022 by Kirat

‘]’ should jump back if cell is nonzero Hugely convoluted approach; you want to put the matches in the brackets array so it’s like case ‘[‘: if (arr[ptr] == 0) i = brackets[i]; break; Why i = brackets[j][1] – 1; and not just i = brackets[j][1]; (extra speed cost) Having j and pos laboriously correlate … Read more