RealUnaryMinus

Floating point unary minus operator as the second operand of binary arithmetic operators, a expr node.

声明

语法

RealUnaryMinus(expr arg, ttype type, expr? value)

参数

Argument Name	Argument Description
arg	expression arguments
type	table entry type
value	expression value

返回值

The return value is the expression that the RealUnaryMinus represents.

描述

RealUnaryMinus represents real unary minus operand of binary arithmetic operators, to be used without parantheses.

Example : a = b.x * -c.x

类型

Only accepts floating point values, exponents.

示例

-1.2

ASR:

(TranslationUnit
    (SymbolTable
        1
        {

        })
    [(RealUnaryMinus
        (RealConstant
            1.200000
            (Real 4 [])
        )
        (Real 4 [])
        (RealConstant
            -1.200000
            (Real 4 [])
        )
    )]
)

也可以看看

IntegerUnaryMinus