diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2023-06-26 12:08:40 +0300 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2023-06-26 12:08:40 +0300 |
| commit | e619a25a551ac6a5f215005166371074a9e2816f (patch) | |
| tree | b989f18f6f49d7abf707e36f342bea1633ad3dc4 | |
| parent | 5d8f8570c0c4220bfadb6d24d4fbc3e722d44802 (diff) | |
shell/math: improve comments
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | shell/math.c | 6 |
1 files 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: |