qb64/internal/help/_INFLATE$.txt

{{DISPLAYTITLE:_INFLATE$}}
The [[_INFLATE$]] function decompresses a [[STRING|string]] compressed by the [[_DEFLATE$]] function.


{{PageSyntax}}
:{{Parameter|result$}} = [[_INFLATE$]]({{Parameter|stringToDecompress$[, originalSize&]}})


{{PageDescription}}
* {{Parameter|result$}} will contain the original version of {{Parameter|stringToDecompress$}}.
* Optional parameter {{Parameter|originalSize&}} can be used if the original size of the uncompressed data is known beforehand, which makes the decompression routine run more efficiently.
** If unspecified, decompression still works as expected, but may use more steps and need to allocate more memory internally.


{{PageAvailability}}
* Version 1.4 and up.


{{PageExamples}}
''Example 1:'' Compressing a long string of text.
{{CodeStart}}
a$ = "The quick brown fox jumps over the lazy dog. "
{{Cl|PRINT}} "Original string (a$): "; a$
{{Cl|FOR}} i = 1 {{Cl|TO}} 15
    a$ = a$ + a$
{{Cl|NEXT}}
 
{{Cl|PRINT}} "After concatenating it into itself several times, LEN(a$) ="; {{Cl|LEN}}(a$)
 
b$ = {{Cl|_DEFLATE$}}(a$)
{{Cl|PRINT}} "After using _DEFLATE$ to compress it, LEN ="; {{Cl|LEN}}(b$)
{{Cl|PRINT USING}} "(compressed size is #.###% of the original)"; (({{Cl|LEN}}(b$) * 100) / {{Cl|LEN}}(a$))
c$ = {{Cl|_INFLATE$}}(b$)
PRINT "After using _INFLATE$ to decompress it, LEN ="; {{Cl|LEN}}(c$)
 {{CodeEnd}}
{{OutputStart}}
Original string (a$): The quick brown fox jumps over the lazy dog
After concatenating it into itself several times, LEN(a$) = 1474560
After using _DEFLATE$ to compress it, LEN = 4335
(compressed size is 0.295% of the original)
After using _INFLATE$ to decompress it, LEN = 1474560
{{OutputEnd}}

{{PageSeeAlso}}
* [[_DEFLATE$]]


{{PageNavigation}}