Implicit type conversion: Difference between revisions
Implicit type conversion en FreeBASIC
(Implicit type conversion en FreeBASIC) |
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<3:1> !. * 2 false #boolean false is equal to 0
0</lang>
=={{header|FreeBASIC}}==
Var declares a variable whose type is implied from the initializer expression. It is illegal to specify an explicit type in a Var declaration. The initializer expression can be either a constant or any variable of any type.
Since the type of the variable is inferred from what you assign into it, it's helpful to know how literals work. Any literal number without a decimal point defaults to Integer. A literal number with a decimal point defaults to Double.
All ZString expressions, including string literals and dereferenced ZString Ptrs, will be given the String variable type.
<lang freebasic>Var a = Cast(Byte, 1)
Var b = Cast(Short, 1)
Var c = Cast(Integer, 1)
Var d = Cast(Longint, 1)
Var au = Cast(Ubyte, 1)
Var bu = Cast(Ushort, 1)
Var cu = Cast(Uinteger, 1)
Var du = Cast(Ulongint, 1)
Var e = Cast(Single, 1.0)
Var f = Cast(Double, 1.0)
Var g = @c '' integer ptr
Var h = @a '' byte ptr
Var s2 = "hello" '' var-len string
Var ii = 6728 '' implicit integer
Var id = 6728.0 '' implicit double
Print "Byte: "; a
Print "Short: "; b
Print "Integer: "; c
Print "Longint: "; d
Print "UByte: "; au
Print "UShort: "; bu
Print "UInteger: "; cu
Print "ULongint: "; du
Print "Single: "; e
Print "Double: "; f
Print "Integer Pointer: "; g
Print "Byte Pointer: "; h
Print "Variable String: "; s2
Print
Print "Integer: "; ii
Print "Double: "; id</lang>
{{out}}
<pre>Byte: 1
Short: 1
Integer: 1
Longint: 1
UByte: 1
UShort: 1
UInteger: 1
ULongint: 1
Single: 1
Double: 1
Integer Pointer: 1375536
Byte Pointer: 1375547
Variable String: hello
Integer: 6728
Double: 6728</pre>
=={{header|Furor}}==
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