c# - Operator '!' cannot be applied to operand of type long -
i doing conversion of old vb code c#. getting error when converting couple of properties.
"operator '!' cannot applied operand of type long"
this vb code looks , hoping this.
public property value() integer if (me.m_value < 32768) return me.m_value else return -32768 + (me.m_value - 32768) end if end set(byval plcvalue integer) me.m_value = plcvalue end set end property public property b0() boolean if ((me.m_value , &h1&) = &h1&) return true else return false end if end set(byval state boolean) if (state = true) me.m_value = me.m_value or &h1& else me.m_value = me.m_value , (not &h1&) end if end set end property public property b1() boolean if ((me.m_value , &h2&) = &h2&) return true else return false end if end set(byval state boolean) if (state = true) me.m_value = me.m_value or &h2& else me.m_value = me.m_value , (not &h2&) end if end set end property this looks when converting it. both set conditions getting error. or | can change casting (int) , error goes away not sure on else condition how adjust that?
public int value { { if ((_value < 32768)) { return _value; } else { return -32768 + (_value - 32768); } } set { _value = value; } } public bool b0 { { if (((_value & 0x1l) == 0x1l)) { return true; } else { return false; } } set { if ((value == true)) { _value = _value | 0x1l; } else { _value = _value & (!0x1l); } } } public bool b1 { { if (((_value & 0x2l) == 0x2l)) { return true; } else { return false; } } set { if ((value == true)) { _value = _value | 0x2l; } else { _value = _value & (!0x2l); } } } thanks!
complete code, correct:
public int value { { if ((_value < 32768)) { return _value; } else { return -32768 + (_value - 32768); } } set { _value = value; } } public bool b0 { { if (((_value & 0x1) == 0x1)) { return true; } else { return false; } } set { if ((value == true)) { _value = _value | 0x1; } else { _value = _value & (~0x1); } } } public bool b1 { { if (((_value & 0x2) == 0x2)) { return true; } else { return false; } } set { if ((value == true)) { _value = _value | 0x2; } else { _value = _value & (~0x2); } } } as pointed out in comment , confirmed @mataps link, not on numerical value should interpreted bitwise negate ~ in c#. also, dropped l literal everywhere, because value of type int, not long, compiler doesn't compain doing bitwise operations on different types (int , long)
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