How to? gosub and label search

[fpefpe]

The doc/help for gosub states that it searches for the label starting with the line after the gosub. So if I have a bat file that issues “gosub :foo” 1000 times will it search 1000 time or remember the line number that “:foo” is and for the next 999 call it knows what line in the bat file to goto or does it search for: foo on every gosub call?

 

[rconn]

GOSUB looks for ":foo" every time (which doesn't take very long for a .BTM). The reason it has to do that is because there are unfortunately a number of "self-modifying" batch files out there that rewrite themselves while they're being executed.

 

[fpefpe]

thx for the info -- I just wrote a tool to extract the auto files from my ipod to the computer -- the bat file is over 100K and I have may gosub(s) to check and create folders --- I recall that BTM files are loaded --- can they be altered while running?

 

[Kachupp]

thx for the info -- I just wrote a tool to extract the auto files from my ipod to the computer -- the bat file is over 100K and I have may gosub(s) to check and create folders --- I recall that BTM files are loaded --- can they be altered while running?

No if its running in BTM mode. Yes if its running as a BAT file

 

[rconn]

thx for the info -- I just wrote a tool to extract the auto files from my ipod to the computer -- the bat file is over 100K and I have may gosub(s) to check and create folders --- I recall that BTM files are loaded --- can they be altered while running?

Might be more efficient to use library functions instead of GOSUB's.