本文整理汇总了C++中ExprResult::IsInt方法的典型用法代码示例。如果您正苦于以下问题：C++ ExprResult::IsInt方法的具体用法？C++ ExprResult::IsInt怎么用？C++ ExprResult::IsInt使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ExprResult的用法示例。
在下文中一共展示了ExprResult::IsInt方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: result
// ==================
ExprResult AddExpression::Add
// ==================
(
ExprResult& left,
ExprResult& right
) const
{
// Create a result, and initialise its status as undefined.
ExprResult result( m_strPrecision );
result.SetStatus( ExprResult::UNDEF_STATUS );
// Convert any possible UNSPECIFIED operand.
left.ConvertFromUnspecified();
right.ConvertFromUnspecified();
// Both operands must now have arithmetic types; check if either
// operand has the type FLOAT.
if ( left.IsFloat() || right.IsFloat() )
{
// Convert both to FLOAT.
left.ConvertToFloat();
right.ConvertToFloat();
}
// Get the numerical values of the operands.
double* pNumValLeft = left.GetNumValue();
double* pNumValRight = right.GetNumValue();
// Check if the numerical values exist; i.e. check if no
// null pointers were returned.
if ( pNumValLeft != 0 && pNumValRight != 0 )
{
// Calculate the numerical value of the result by adding
// the numerical values of the operands.
double dlNumVal = (*pNumValLeft) + (*pNumValRight);
// Since both operands now have the same type, check the type
// of the left operand to check if both have type INT.
if ( left.IsInt() )
{
// Take as value of the result the conversion of its
// numerical value to a string; not using exponential
// notation, and with a precision of 0. Then, set the
// result type to INT.
result.SetValue( DoubleAsIntToStr( dlNumVal ) );
result.SetType( ExprResult::INT );
}
else
{
// Take as value of the result the conversion of its
// numerical value to a string, using a precision of
// ADDPRECISION. Then, set the result type to FLOAT.
result.SetValue( DoubleToStr( dlNumVal, ADDPRECISION ) );
result.SetType( ExprResult::FLOAT );
}
// Set the result status to OK.
result.SetStatus( ExprResult::OK );
}
else
{
// Although the operands were of arithmetic type, no mumerical
// value could be determined; internal error.
result.SetStatus( ExprResult::INTERNAL_ERROR );
}
return result;
}