diff options
Diffstat (limited to 'shell/math.c')
| -rw-r--r-- | shell/math.c | 23 |
1 files changed, 3 insertions, 20 deletions
diff --git a/shell/math.c b/shell/math.c index 2b7a349..fa22bc4 100644 --- a/shell/math.c +++ b/shell/math.c @@ -246,24 +246,11 @@ is_right_associative(operator prec) typedef struct { arith_t val; - /* We acquire second_val only when "expr1 : expr2" part - * of ternary ?: op is evaluated. - * We treat ?: as two binary ops: (expr ? (expr1 : expr2)). - * ':' produces a new value which has two parts, val and second_val; - * then '?' selects one of them based on its left side. - */ - arith_t second_val; -#define SECOND_VAL_VALID ((char*)(intptr_t)-1) - /* If NULL then it's just a number, if SECOND_VAL_VALID, - * it's a result of "expr : expr", else it's a named variable. - * (We use SECOND_VAL_VALID instead of a bit flag to keep - * var_or_num_t smaller, we allocate a lot of them on stack). - */ char *var_name; } var_or_num_t; -#define VALID_NAME(name) ((name) && (name) != SECOND_VAL_VALID) -#define NOT_NAME(name) (!(name) || (name) == SECOND_VAL_VALID) +#define VALID_NAME(name) (name) +#define NOT_NAME(name) (!(name)) typedef struct remembered_name { @@ -854,11 +841,7 @@ evaluate_string(arith_state_t *math_state, const char *expr) errmsg = arith_apply(math_state, prev_op, numstack, &numstackptr); if (errmsg) goto err_with_custom_msg; -dbg(" numstack:%d val:%lld %lld %p", (int)(numstackptr - numstack), - numstackptr[-1].val, - numstackptr[-1].var_name == SECOND_VAL_VALID ? numstackptr[-1].second_val : 0, - numstackptr[-1].var_name -); +dbg(" numstack:%d val:%lld '%s'", (int)(numstackptr - numstack), numstackptr[-1].val, numstackptr[-1].var_name); /* For ternary ?: we need to remove ? from opstack too, not just : */ if (prev_op == TOK_CONDITIONAL_SEP) { // This is caught in arith_apply() |