From e619a25a551ac6a5f215005166371074a9e2816f Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Mon, 26 Jun 2023 11:08:40 +0200 Subject: shell/math: improve comments Signed-off-by: Denys Vlasenko --- shell/math.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/shell/math.c b/shell/math.c index 0426e2daa..9e81d604c 100644 --- a/shell/math.c +++ b/shell/math.c @@ -856,9 +856,11 @@ evaluate_string(arith_state_t *math_state, const char *expr) */ prec = PREC(op); if (prec != PREC_LPAREN && prec < UNARYPREC) { - /* binary, ternary or RPAREN */ + /* Binary, ternary or RPAREN */ if (lasttok != TOK_VALUE) { - /* must be preceded by a num (example?) */ + /* Must be preceded by a value. + * $((2 2 + * 3)) would be accepted without this. + */ goto syntax_err; } /* if op is RPAREN: -- cgit v1.2.3