%description:
Test double <-> int conversion in NED expressions (they are implemented
with cDynamicExpression).

%global:

void test(const char *expr)
{
    std::string result;
    try {
        cDynamicExpression e;
        e.parse(expr);
        cNedValue v = e.evaluate(cSimulation::getActiveSimulation()->getContextModule());
        result = v.str();
    } catch (std::exception& e) {
        result = e.what();
    }
    EV << expr << " ==> " << result << "\n";
}

void test(const char *s1, const std::string& s2, const char *s3)
{
    test((std::string(s1) + " " + s2 + " " + s3).c_str());
}

%activity:
// no implicit double-to-int cast --> error
test("~3.0");
test("1.0 & 3");
test("1 & 3.0");
test("1.0 | 3");
test("1 | 3.0");
test("1.0 # 3");
test("1 # 3.0");
test("1 << 1.0");
test("1.0 << 1");
test("1 >> 1.0");
test("1.0 >> 1");
test("intuniform(1.0, 3)");
test("intuniform(1, 3.0)");
EV << endl;

// using int() to convert from double
test("int(3.0)");
test("int(3.1)");
test("int(3.9)");
test("int(-3.1)");
test("int(-3.9)");
test("int(9.5e18)"); // error: overflow
test("int(-9.5e18)"); // error: overflow
EV << endl;

// int-to-double conversion is implicit
test("3.14 + 1");
test("3.14 + 1234567890123456");
test("3.14 + 12345678901234567"); // error: precision loss (does not fit into double's 52-bit mantissa)
test("3.14 - 12345678901234567"); // error: precision loss (does not fit into double's 52-bit mantissa)
EV << endl;

// using double() to force conversion, ignoring possible precision loss
test("double(1234567890123456789)");
test("double(-1234567890123456789)");

EV << ".\n";

%subst: /e\+0(\d\d)/e+\1/

%contains: stdout
~3.0 ==> operator "~": Integer argument expected, got double (note: no implicit conversion from double to int)
1.0 & 3 ==> operator "&": Integer argument expected, got double and integer (note: no implicit conversion from double to int)
1 & 3.0 ==> operator "&": Integer argument expected, got integer and double (note: no implicit conversion from double to int)
1.0 | 3 ==> operator "|": Integer argument expected, got double and integer (note: no implicit conversion from double to int)
1 | 3.0 ==> operator "|": Integer argument expected, got integer and double (note: no implicit conversion from double to int)
1.0 # 3 ==> operator "#": Integer argument expected, got double and integer (note: no implicit conversion from double to int)
1 # 3.0 ==> operator "#": Integer argument expected, got integer and double (note: no implicit conversion from double to int)
1 << 1.0 ==> operator "<<": Integer argument expected, got integer and double (note: no implicit conversion from double to int)
1.0 << 1 ==> operator "<<": Integer argument expected, got double and integer (note: no implicit conversion from double to int)
1 >> 1.0 ==> operator ">>": Integer argument expected, got integer and double (note: no implicit conversion from double to int)
1.0 >> 1 ==> operator ">>": Integer argument expected, got double and integer (note: no implicit conversion from double to int)
intuniform(1.0, 3) ==> intuniform(): integer expected for argument 0, got double (note: no implicit conversion from double to int)
intuniform(1, 3.0) ==> intuniform(): integer expected for argument 1, got double (note: no implicit conversion from double to int)

int(3.0) ==> 3
int(3.1) ==> 3
int(3.9) ==> 3
int(-3.1) ==> -4
int(-3.9) ==> -4
int(9.5e18) ==> Overflow casting 9500000000000000000.000000 to the target integer type
int(-9.5e18) ==> Overflow casting -9500000000000000000.000000 to the target integer type

3.14 + 1 ==> 4.14
3.14 + 1234567890123456 ==> 1.23457e+15
3.14 + 12345678901234567 ==> operator "+": Integer 12345678901234567 too large, conversion to double would incur precision loss (hint: if this occurs in NED or ini, use the double() operator to suppress this error)
3.14 - 12345678901234567 ==> operator "-": Integer -12345678901234567 too large, conversion to double would incur precision loss (hint: if this occurs in NED or ini, use the double() operator to suppress this error)

double(1234567890123456789) ==> 1.23457e+18
double(-1234567890123456789) ==> -1.23457e+18
.