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moderate exception behavior for issue #861

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-01-05 16:09:16 -05:00
parent 447c97a783
commit e9edcdc6e6
1 changed files with 21 additions and 6 deletions
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25
src/api/c++/z3++.h
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@ -345,7 +345,7 @@ namespace z3 {
object(context & c):m_ctx(&c) {} object(context & c):m_ctx(&c) {}
object(object const & s):m_ctx(s.m_ctx) {} object(object const & s):m_ctx(s.m_ctx) {}
context & ctx() const { return *m_ctx; } context & ctx() const { return *m_ctx; }
void check_error() const { m_ctx->check_error(); } Z3_error_code check_error() const { return m_ctx->check_error(); }
friend void check_context(object const & a, object const & b); friend void check_context(object const & a, object const & b);
}; };
inline void check_context(object const & a, object const & b) { assert(a.m_ctx == b.m_ctx); } inline void check_context(object const & a, object const & b) { assert(a.m_ctx == b.m_ctx); }
@ -688,11 +688,17 @@ namespace z3 {
\brief Return int value of numeral, throw if result cannot fit in \brief Return int value of numeral, throw if result cannot fit in
machine int machine int
It only makes sense to use this function if the caller can ensure that
the result is an integer or if exceptions are enabled.
If exceptions are disabled, then use the the is_numeral_i function.
\pre is_numeral() \pre is_numeral()
*/ */
int get_numeral_int() const { int get_numeral_int() const {
int result = 0; int result = 0;
if (!is_numeral_i(result) && ctx().enable_exceptions()) { if (!is_numeral_i(result)) {
assert(ctx().enable_exceptions());
if (!ctx().enable_exceptions()) return 0;
throw exception("numeral does not fit in machine int"); throw exception("numeral does not fit in machine int");
} }
return result; return result;
@ -702,12 +708,17 @@ namespace z3 {
\brief Return uint value of numeral, throw if result cannot fit in \brief Return uint value of numeral, throw if result cannot fit in
machine uint machine uint
It only makes sense to use this function if the caller can ensure that
the result is an integer or if exceptions are enabled.
If exceptions are disabled, then use the the is_numeral_u function.
\pre is_numeral() \pre is_numeral()
*/ */
unsigned get_numeral_uint() const { unsigned get_numeral_uint() const {
assert(is_numeral()); assert(is_numeral());
unsigned result = 0; unsigned result = 0;
if (!is_numeral_u(result) && ctx().enable_exceptions()) { if (!is_numeral_u(result)) {
assert(ctx().enable_exceptions());
if (!ctx().enable_exceptions()) return 0;
throw exception("numeral does not fit in machine uint"); throw exception("numeral does not fit in machine uint");
} }
return result; return result;
@ -722,7 +733,9 @@ namespace z3 {
__int64 get_numeral_int64() const { __int64 get_numeral_int64() const {
assert(is_numeral()); assert(is_numeral());
__int64 result = 0; __int64 result = 0;
if (!is_numeral_i64(result) && ctx().enable_exceptions()) { if (!is_numeral_i64(result)) {
assert(ctx().enable_exceptions());
if (!ctx().enable_exceptions()) return 0;
throw exception("numeral does not fit in machine __int64"); throw exception("numeral does not fit in machine __int64");
} }
return result; return result;
@ -737,7 +750,9 @@ namespace z3 {
__uint64 get_numeral_uint64() const { __uint64 get_numeral_uint64() const {
assert(is_numeral()); assert(is_numeral());
__uint64 result = 0; __uint64 result = 0;
if (!is_numeral_u64(result) && ctx().enable_exceptions()) { if (!is_numeral_u64(result)) {
assert(ctx().enable_exceptions());
if (!ctx().enable_exceptions()) return 0;
throw exception("numeral does not fit in machine __uint64"); throw exception("numeral does not fit in machine __uint64");
} }
return result; return result;