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shell/math: better comment. no code changes

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Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2010-09-17 18:02:17 +02:00
parent c8f9a8d3c0
commit 395b97aeac
1 changed files with 2 additions and 2 deletions
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shell/math.c
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@ -652,10 +652,10 @@ evaluate_string(arith_state_t *math_state, const char *expr)
* integer stack. * integer stack.
* But for binary operators, "apply" everything on the operator * But for binary operators, "apply" everything on the operator
* stack until we find an operator with a lesser priority than the * stack until we find an operator with a lesser priority than the
* one we have just extracted. * one we have just extracted. If op is right-associative,
* then stop "applying" on the equal priority too.
* Left paren is given the lowest priority so it will never be * Left paren is given the lowest priority so it will never be
* "applied" in this way. * "applied" in this way.
* if associativity is right and priority eq, applied also skip
*/ */
prec = PREC(op); prec = PREC(op);
if ((prec > 0 && prec < UNARYPREC) || prec == SPEC_PREC) { if ((prec > 0 && prec < UNARYPREC) || prec == SPEC_PREC) {