numeric constants and the Step of for/next

[Jeromyal]

I have arrived at a situation where I need to set a value of to step with for next statements upon initialization of a program

The compiler complains that it needs to be a numeric constant if I try to use an integer variable.

Is there a way around this?

I need to functionally increment var1 to var2 with step var3 in a loop.

[Jeromyal]

I am embarrassing myself once again.
I am pretty sure I can accomplish this with while/wend
I am sorry.

[mk-soft]

As a reminder

Code: Select all

varFrom.d = 10
varTo.d = 20
varStep.d = 0.5
i.d = varFrom
While (i <= varTo)
  a.d = i
  Debug a
  i + varStep
Wend

[BarryG]

It's always seemed strange to me that PureBasic doesn't accept floats for the "Next" parameter. Every other BASIC can do it without making the user resort to another type of loop.

[STARGÅTE]

Due to the nature of floats and doubles, you cannot simply use floats or doubles as step value and iterate until it reaches a specific value.
In certain cases such approach would lead to unexpected behaviors, if it would be used in a For:Next:Step loop.

Code: Select all

Define x.d, y.d

x = 0.0
While x <= 0.6
	Debug "x = "+StrD(x)
	x + 0.2
Wend
Debug "0.6 is missing"

Debug "----"

y = 0.0
Repeat
	y + 0.1
	Debug "y = "+StrD(y)
Until y >= 1.0
Debug "1.1 is too much"

[moricode]

For/Next in PB has many many limitation and restriction ,
by which , all loops can be done in WHILE/WEND or Repeat/Forever , for/next could be avoided if possible.

in other language (eg. C) , for/next is more capable suppose.