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shell/math: trivial code shrink 

function                                             old     new   delta
arith_apply                                         1143    1132     -11

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
master
Denys Vlasenko 2023-06-14 13:59:11 +02:00
parent 3df885abe3
commit 66139330fc
1 changed files with 3 additions and 4 deletions
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7
shell/math.c
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@ -321,9 +321,9 @@ arith_apply(arith_state_t *math_state, operator op, var_or_num_t *numstack, var_
if (op == TOK_CONDITIONAL_SEP) {
/* "expr1 ? expr2 : expr3" operation */
var_or_num_t *expr1 = &top_of_stack[-2];
if (expr1 < numstack) {
NUMPTR = expr1 + 1;
if (expr1 < numstack) /* Example: $((2:3)) */
return "malformed ?: operator";
}
err = arith_lookup_val(math_state, expr1);
if (err)
return err;
@ -332,7 +332,6 @@ arith_apply(arith_state_t *math_state, operator op, var_or_num_t *numstack, var_
err = arith_lookup_val(math_state, top_of_stack);
if (err)
return err;
NUMPTR = expr1 + 1;
expr1->val = top_of_stack->val;
expr1->var_name = NULL;
return NULL;
@ -343,7 +342,7 @@ arith_apply(arith_state_t *math_state, operator op, var_or_num_t *numstack, var_
if (PREC(op) < UNARYPREC) {
/* In binops a ~ b, variables are resolved left-to-right,
* resolve top_of_stack[-1] _before_ resolving top_of_stack[0]
*/
*/
if (top_of_stack == numstack) /* need two arguments */
goto syntax_err;
/* Unless it is =, resolve top_of_stack[-1] name to value */