* src/ltlvisit/dump.hh (dump): Return the passed ostream.
* src/ltlvisit/dump.cc (dump): Likewise. * src/ltlvisit/dotty.hh (dotty): Likewise. * src/ltlvisit/dotty.cc (dotty): Likewise. * src/ltlvisit/tostring.hh (to_string): Likewise. * src/ltlvisit/tostring.cc (to_string): Likewise.
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@ -13,7 +13,7 @@ namespace spot
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/// \param os The stream where it should be output.
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///
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/// This is useful to display a formula when debugging.
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void dump(const formula* f, std::ostream& os);
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std::ostream& dump(const formula* f, std::ostream& os);
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}
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}
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