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fix #2041, fix #2043

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-12-16 15:18:49 -08:00
parent 58b9fc437d
commit f56749a241
4 changed files with 31 additions and 189 deletions
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25
src/ast/seq_decl_plugin.cpp
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@ -69,14 +69,14 @@ static bool is_escape_char(char const *& s, unsigned& result) {
}
/* 2 octal digits */
if (is_octal_digit(*(s + 1), d1) && is_octal_digit(*(s + 2), d2) &&
!is_octal_digit(*(s + 3), d3)) {
!is_octal_digit(*(s + 3), d3)) {
result = d1 * 8 + d2;
s += 3;
return true;
}
/* 3 octal digits */
if (is_octal_digit(*(s + 1), d1) && is_octal_digit(*(s + 2), d2) &&
is_octal_digit(*(s + 3), d3)) {
is_octal_digit(*(s + 3), d3)) {
result = d1*64 + d2*8 + d3;
s += 4;
return true;
@ -296,13 +296,10 @@ bool zstring::operator==(const zstring& other) const {
return false;
}
for (unsigned i = 0; i < length(); ++i) {
unsigned Xi = m_buffer[i];
unsigned Yi = other[i];
if (Xi != Yi) {
if (m_buffer[i] != other[i]) {
return false;
}
}
return true;
}
@ -325,19 +322,14 @@ bool operator<(const zstring& lhs, const zstring& rhs) {
unsigned Ri = rhs[i];
if (Li < Ri) {
return true;
} else if (Li > Ri) {
}
else if (Li > Ri) {
return false;
} else {
continue;
}
}
}
// at this point, all compared characters are equal,
// so decide based on the relative lengths
if (lhs.length() < rhs.length()) {
return true;
} else {
return false;
}
return lhs.length() < rhs.length();
}
@ -556,7 +548,7 @@ void seq_decl_plugin::init() {
m_sigs[OP_RE_OF_PRED] = alloc(psig, m, "re.of.pred", 1, 1, &predA, reA);
m_sigs[OP_SEQ_TO_RE] = alloc(psig, m, "seq.to.re", 1, 1, &seqA, reA);
m_sigs[OP_SEQ_IN_RE] = alloc(psig, m, "seq.in.re", 1, 2, seqAreA, boolT);
m_sigs[OP_STRING_CONST] = 0;
m_sigs[OP_STRING_CONST] = nullptr;
m_sigs[_OP_STRING_STRIDOF] = alloc(psig, m, "str.indexof", 0, 3, str2TintT, intT);
m_sigs[_OP_STRING_STRREPL] = alloc(psig, m, "str.replace", 0, 3, str3T, strT);
m_sigs[OP_STRING_ITOS] = alloc(psig, m, "int.to.str", 0, 1, &intT, strT);
@ -1063,7 +1055,6 @@ app* seq_util::re::mk_empty(sort* s) {
return m.mk_app(m_fid, OP_RE_EMPTY_SET, 0, nullptr, 0, nullptr, s);
}
bool seq_util::re::is_loop(expr const* n, expr*& body, unsigned& lo, unsigned& hi) {
if (is_loop(n)) {
app const* a = to_app(n);