1 files changed, 0 insertions, 182 deletions

diff --git a/dc.c b/dc.c
deleted file mode 100644
index 8d7a92a28..000000000
--- a/dc.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* vi: set sw=4 ts=4: */
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <math.h>
-#include "busybox.h"
-
-/* Tiny RPN calculator, because "expr" didn't give me bitwise operations. */
-
-static double stack[100];
-static unsigned int pointer;
-
-static void push(double a)
-{
-        if (pointer >= (sizeof(stack) / sizeof(*stack)))
-                error_msg_and_die("stack overflow");
-        stack[pointer++] = a;
-}
-
-static double pop()
-{
-        if (pointer == 0)
-                error_msg_and_die("stack underflow");
-        return stack[--pointer];
-}
-
-static void add()
-{
-        push(pop() + pop());
-}
-
-static void sub()
-{
-        double subtrahend = pop();
-
-        push(pop() - subtrahend);
-}
-
-static void mul()
-{
-        push(pop() * pop());
-}
-
-static void divide()
-{
-        double divisor = pop();
-
-        push(pop() / divisor);
-}
-
-static void and()
-{
-        push((unsigned int) pop() & (unsigned int) pop());
-}
-
-static void or()
-{
-        push((unsigned int) pop() | (unsigned int) pop());
-}
-
-static void eor()
-{
-        push((unsigned int) pop() ^ (unsigned int) pop());
-}
-
-static void not()
-{
-        push(~(unsigned int) pop());
-}
-
-static void print()
-{
-        printf("%g\n", pop());
-}
-
-struct op {
-        const char *name;
-        void (*function) ();
-};
-
-static const struct op operators[] = {
-        {"+",   add},
-        {"add", add},
-        {"-",   sub},
-        {"sub", sub},
-        {"*",   mul},
-        {"mul", mul},
-        {"/",   divide},
-        {"div", divide},
-        {"and", and},
-        {"or",  or},
-        {"not", not},
-        {"eor", eor},
-        {0,     0}
-};
-
-static void stack_machine(const char *argument)
-{
-        char *endPointer = 0;
-        double d;
-        const struct op *o = operators;
-
-        if (argument == 0) {
-                print();
-                return;
-        }
-
-        d = strtod(argument, &endPointer);
-
-        if (endPointer != argument) {
-                push(d);
-                return;
-        }
-
-        while (o->name != 0) {
-                if (strcmp(o->name, argument) == 0) {
-                        (*(o->function)) ();
-                        return;
-                }
-                o++;
-        }
-        error_msg_and_die("%s: syntax error.", argument);
-}
-
-/* return pointer to next token in buffer and set *buffer to one char
- * past the end of the above mentioned token 
- */
-static char *get_token(char **buffer)
-{
-        char *start   = NULL;
-        char *current = *buffer;
-
-        while (isspace(*current)) { current++; }
-        if (*current != 0) {
-                start = current;
-                while (!isspace(*current) && current != 0) { current++; }
-                *buffer = current;
-        }
-        return start;
-}
-
-/* In Perl one might say, scalar m|\s*(\S+)\s*|g */
-static int number_of_tokens(char *buffer)
-{
-        int   i = 0;
-        char *b = buffer;
-        while (get_token(&b)) { i++; }
-        return i;
-}
-
-int dc_main(int argc, char **argv)
-{
-        /* take stuff from stdin if no args are given */
-        if (argc <= 1) {
-                int i, len;
-                char *line   = NULL;
-                char *cursor = NULL;
-                char *token  = NULL;
-                while ((line = get_line_from_file(stdin))) {
-                        cursor = line;
-                        len = number_of_tokens(line);
-                        for (i = 0; i < len; i++) {
-                                token = get_token(&cursor);
-                                *cursor++ = 0;
-                                stack_machine(token);
-                        }
-                        free(line);
-                }
-        } else {
-                if (*argv[1]=='-')
-                        show_usage();
-                while (argc >= 2) {
-                        stack_machine(argv[1]);
-                        argv++;
-                        argc--;
-                }
-        }
-        stack_machine(0);
-        return EXIT_SUCCESS;
-}