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formula: is_literal should be const

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Reported by Ayrat Khalimov.

* spot/tl/formula.hh (is_literal): Mark as const.
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Alexandre Duret-Lutz 2021-12-02 17:31:47 +01:00
parent 8ffd06e9a6
commit 4d2262600e
1 changed files with 1 additions and 1 deletions
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spot/tl/formula.hh
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@ -1557,7 +1557,7 @@ namespace spot
/// \brief Whether the formula is an atomic proposition or its /// \brief Whether the formula is an atomic proposition or its
/// negation. /// negation.
bool is_literal() bool is_literal() const
{ {
return (is(op::ap) || return (is(op::ap) ||
// If f is in nenoform, Not can only occur in front of // If f is in nenoform, Not can only occur in front of