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Brainfuck to C translator
/*
* A simple, non-optimizing brainfuck to C translator.
* 2010-08-31 - Version 1.0 (Cory Burgett)
*
* This code is hereby placed into the public domain.
*
* Originally located at: http://www4.ncsu.edu/~cmburget/brainfucc.c
*/
#include <stdio.h>
int main(int argc, char **argv)
{
FILE *in = stdin, *out = stdout;
int c;
int cellsize = 30000;
fprintf(out,
"#include <stdio.h>\n"
"#include <stdlib.h>\n\n"
"int main(int argc, char **argv)\n{\n"
"\tunsigned char *cell = calloc(%d, 1);\n"
"\tunsigned char *cells = cell;\n"
"\tif (!cell) {\n"
"\t\tfprintf(stderr, \"Error allocating memory.\\n\");\n"
"\t\treturn 1;\n"
"\t}\n\n", cellsize
);
while ((c = getc(in)) != EOF) {
switch (c) {
case '>': fprintf(out, "\t\t++cell;\n"); break;
case '<': fprintf(out, "\t\t--cell;\n"); break;
case '+': fprintf(out, "\t\t++*cell;\n"); break;
case '-': fprintf(out, "\t\t--*cell;\n"); break;
case '.': fprintf(out, "\t\tputchar(*cell);\n"); break;
case ',': fprintf(out, "\t\t*cell = getchar();\n"); break;
case '[': fprintf(out, "\twhile (*cell) {\n"); break;
case ']': fprintf(out, "\t}\n"); break;
default: break;
}
}
fprintf(out, "\n\tfree(cells);\n\treturn 0;\n}\n\n");
}
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