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minor fixes after feedback from regression tests...

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This commit is contained in:
Leonardo de Moura 2012-10-30 09:19:39 -07:00
parent b629dd7fdd
commit cb8a6db51b
2 changed files with 6 additions and 1 deletions
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5
src/ast/rewriter/bv_rewriter.cpp
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@ -1452,7 +1452,10 @@ br_status bv_rewriter::mk_bv_xor(unsigned num, expr * const * args, expr_ref & r
} }
} }
std::reverse(exs.c_ptr(), exs.c_ptr() + exs.size()); std::reverse(exs.c_ptr(), exs.c_ptr() + exs.size());
result = m_util.mk_concat(exs.size(), exs.c_ptr()); if (exs.size() == 1)
result = exs[0];
else
result = m_util.mk_concat(exs.size(), exs.c_ptr());
return BR_REWRITE3; return BR_REWRITE3;
} }

2
src/parsers/smt2/smt2parser.cpp
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@ -1893,6 +1893,8 @@ namespace smt2 {
if (!curr_is_rparen()) { if (!curr_is_rparen()) {
check_int("invalid push command, integer expected"); check_int("invalid push command, integer expected");
rational n = curr_numeral(); rational n = curr_numeral();
if (n.is_neg())
throw parser_exception("invalid push command, value is negative.");
if (!n.is_unsigned()) if (!n.is_unsigned())
throw parser_exception("invalid push command, value is too big to fit in an unsigned machine integer"); throw parser_exception("invalid push command, value is too big to fit in an unsigned machine integer");
num = n.get_unsigned(); num = n.get_unsigned();