Data commit

Task/Variables/PureBasic/variables.basic

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+; Variables are initialized when they appear in sourcecode with default value of 0 and type int
+Debug a
+; or value "" for a string, they are not case sensitive
+Debug b$
+; This initializes a double precision float, if type is following the dot
+Debug c.d
+; They can be initialized with define (double precision float, string, integer)
+Define d.d = 3.5, e$ = "Test", f.i = a + 2
+; Define can have a default type (all bytes except j which is long):
+Define.b g, h, j.l
+; Define without following variables sets default type. In this case to single precision float
+Define.f
+; So this will be an single precision float and no integer
+Debug k
+; EnableExplicit forces declaration of used variables with define
+EnableExplicit
+; Will throw an error because L isn't initialized
+Debug L
+DisableExplicit
+; Global Variables are available in Procedures and Threads too
+Global M = 3, N = 2
+Procedure Dummy(parameter1, parameter2 = 20)
+  ; Parameter contain values which where used when calling the function,
+  ; their types have to be specified in the above Procedure header.
+  ; The last ones can have default values which get applied if this parameter is not given.
+
+  ; Variables in Procedures are separate from those outside,
+  ; so d can be initialized again with another type
+  ; which would otherwise lead to an error
+  d.i
+  ; Protected makes a variable local even if another one with same name is declared as global (see above)
+  Protected M = 2
+  ; Shares a variable with main program like it was declared by global
+  Shared a
+  ; prevents a variable to be initialized with default value again when procedure is called a second time,
+  ; could be used for example as a counter, which contains the number of times a function was called
+  Static a
+  ; N here also would have a value of 2, while for example
+  ; f would, when named, initialize a new variable, and so have a value of 0
+EndProcedure
+; finally there are constants which are prefixed by an #:
+#Test = 1
+; Their value cannot be changed while program is running
+#String_Constant = "blubb"
+; In constrast  to variables, a constant has no types except an (optional) $ sign to mark  it as string constant
+#Float_Constant = 2.3
+; Maps, LinkedLists , Arrays and Structures are not handled here, because they are no elemental variables