empty array doesn't actually delete anything?

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Phaelax

DBPro Master

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Joined: 16th Apr 2003

Location: Metropia

Posted: 6th Jan 2011 05:55

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I'm loading data from two different files. Whenever a file is loaded, I call empty array before adding the new file's elements. The first file contains 10 elements, the second contains 19. I also print out a log and get the following:

Load file 1
Size after empty array: -1
Size after loading file 1: 10

Load file 2
Size before loading: 10
Size after empty array: -1
size after loading file 2: 29

Now if file 2 only contains 19 elements, and the array size reports -1 after emptying it, why then do I still have the original 10 elements in the array?

"Only the educated are free" ~Epictetus
"Imagination is more important than knowledge..." ~Einstein

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BillR

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Joined: 19th Mar 2003

Location: United States

Posted: 6th Jan 2011 08:22 Edited at: 6th Jan 2011 08:23

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We need a little for info:
1)How are you adding to the array?
2)How are you getting the size of the array?
3) How are you emptying the array?
Try this

+ Code Snippet

DIM array(0)
print "DIM new array"
PRINT "array count=";ARRAY COUNT(array())

print "  "
print "Fill Array"
FOR T=1 TO 10
   ARRAY INSERT AT BOTTOM array()
NEXT T
PRINT "array count=";ARRAY COUNT(array())

print "  "
print "Empty Array"
empty array array(0)
PRINT "array count=";ARRAY COUNT(array())

print "  "
print "Fill Array #2"
FOR T=1 TO 10
   ARRAY INSERT AT BOTTOM array()
NEXT T
PRINT "array count=";ARRAY COUNT(array())

print "  "
print "Empty Array #2"
empty array array(0)
PRINT "array count=";ARRAY COUNT(array())

print "  "
print "Fill Array #3"
FOR T=1 TO 10
   ARRAY INSERT AT BOTTOM array()
NEXT T
PRINT "array count=";ARRAY COUNT(array())

print "  "
print "Empty Array #3"
empty array array(0)
PRINT "array count=";ARRAY COUNT(array())

WAIT KEY

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Phaelax

DBPro Master

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Joined: 16th Apr 2003

Location: Metropia

Posted: 6th Jan 2011 14:10

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Ok, so apparently it missed a little "feature" in my xml library. When reading XML files and extracting the tag elements into an array, the array will hold all previous tags when reading multiple xml files unless I call xmlClear() before xmlReadFile(). I forgot that I made xmlReadFile() work in this manner, so it's my own dumb mistake.

So nevermind!

"Only the educated are free" ~Epictetus
"Imagination is more important than knowledge..." ~Einstein

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BillR

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Joined: 19th Mar 2003

Location: United States

Posted: 6th Jan 2011 23:01

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Hey, don't worry, your little mistake gave me a chance to write some test code...cool!

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