ComplexConstructor¶
Complex constructor expression.
声明¶
语法¶
ComplexConstructor(expr re, expr im, ttype type, expr? value)
参数¶
Argument name |
Argument Description |
|---|---|
|
real expression |
|
imaginary expression |
|
table entry type |
|
expression value |
返回值¶
The return value is the expression that the ComplexConstructor represents.
描述¶
ComplexConstructor represents constructor of complex type. A complex literal constant is a complex constructor where each expression if a pair of initialisation expressions.
类型¶
Only accepts complex and real types. The imaginary part can be 0 or can have value.
示例¶
program complex
integer :: i = 42
real :: x = 3.14
complex :: z1, z2
z1 = cmplx(i, x)
print *, z1, cmplx(x, kind=8)
z2 = cmplx(z2, kind=8)
end program complex
ASR:
(TranslationUnit
(SymbolTable
1
{
complex:
(Program
(SymbolTable
2
{
i:
(Variable
2
i
Local
(IntegerConstant 42 (Integer 4 []))
()
Save
(Integer 4 [])
Source
Public
Required
.false.
),
x:
(Variable
2
x
Local
(RealConstant
3.140000
(Real 4 [])
)
()
Save
(Real 4 [])
Source
Public
Required
.false.
),
z1:
(Variable
2
z1
Local
()
()
Default
(Complex 4 [])
Source
Public
Required
.false.
),
z2:
(Variable
2
z2
Local
()
()
Default
(Complex 4 [])
Source
Public
Required
.false.
)
})
complex
[]
[(=
(Var 2 z1)
(ComplexConstructor
(Var 2 i)
(Var 2 x)
(Complex 4 [])
()
)
()
)
(Print
()
[(Var 2 z1)
(ComplexConstructor
(Var 2 x)
(RealConstant
0.000000
(Real 8 [])
)
(Complex 8 [])
()
)]
()
()
)
(=
(Var 2 z2)
(Var 2 z2)
()
)]
)
})
[]
)