1 files changed, 0 insertions, 145 deletions
diff --git a/rushs/tinyprintf/evalexpr/src/evalrpn.c b/rushs/tinyprintf/evalexpr/src/evalrpn.c
deleted file mode 100644
index db493eb..0000000
--- a/rushs/tinyprintf/evalexpr/src/evalrpn.c
+++ /dev/null
@@ -1,145 +0,0 @@
-#include <ctype.h>
-
-#include "evalexpr.h"
-
-int parse_number(const char *expr, size_t *offset)
-{
-    for (*offset = 0;
-         expr[*offset] && expr[*offset] >= '0' && expr[*offset] <= '9';
-         (*offset)++)
-    {
-        continue;
-    }
-    (*offset)--;
-
-    int res = 0;
-    int pow = 1;
-    for (size_t n = 0; n <= *offset; n++, pow *= 10)
-    {
-        res += (expr[*offset - n] - '0') * pow;
-    }
-
-    return res;
-}
-
-int get_operands(struct stack **s, int *op1, int *op2)
-{
-    if (*s == NULL)
-    {
-        return 2;
-    }
-    *op1 = stack_peek(*s);
-    *s = stack_pop(*s);
-    if (*s == NULL)
-    {
-        return 2;
-    }
-    *op2 = stack_peek(*s);
-    *s = stack_pop(*s);
-    return 0;
-}
-
-// Computes a to the bth
-int my_pow(int a, int b)
-{
-    if (b == 0)
-    {
-        return 1;
-    }
-    if (a == 0)
-    {
-        return 0;
-    }
-
-    int res = 1;
-    int c = b / 2;
-    while (c != 0)
-    {
-        res *= a * a;
-        c /= 2;
-    }
-    if (b % 2 != 0)
-        res *= a;
-    return res;
-}
-
-int dispatch(const char c, struct stack **s, int op1, int op2)
-{
-    switch (c)
-    {
-    case '*':
-        *s = stack_push(*s, op1 * op2);
-        break;
-    case '+':
-        *s = stack_push(*s, op1 + op2);
-        break;
-    case '-':
-        *s = stack_push(*s, op2 - op1);
-        break;
-    case '/':
-        if (op1 == 0)
-        {
-            return 3;
-        }
-        *s = stack_push(*s, op2 / op1);
-        break;
-    case '%':
-        if (op1 == 0)
-        {
-            return 3;
-        }
-        *s = stack_push(*s, op2 % op1);
-        break;
-    case '^':
-        if (op1 < 0)
-        {
-            return 3;
-        }
-        *s = stack_push(*s, my_pow(op2, op1));
-        break;
-    default:
-        return 1;
-    }
-    return 0;
-}
-
-int evalrpn(const char *expr, int *retval)
-{
-    struct stack *s = NULL;
-
-    for (size_t i = 0; expr[i]; i++)
-    {
-        if (expr[i] >= '0' && expr[i] <= '9')
-        {
-            size_t offset;
-            int val = parse_number(expr + i, &offset);
-            s = stack_push(s, val);
-            i += offset;
-        }
-        else if (isspace(expr[i]))
-            continue;
-        else
-        {
-            int op1;
-            int op2;
-            if (get_operands(&s, &op1, &op2) == 2)
-            {
-                return 2;
-            }
-
-            int d = dispatch(expr[i], &s, op1, op2);
-            if (d != 0)
-            {
-                return d;
-            }
-        }
-    }
-
-    if (s == NULL)
-    {
-        return 0;
-    }
-    *retval = stack_peek(s);
-    s = stack_pop(s);
-    return (!s) ? 0 : 2;
-}