from "int cfunc(char data,int num) " how can I get the value of'num' in ruby/dl

Thread starter bbmerong
Start date Jan 17, 2008

bbmerong

Jan 17, 2008

I have a question about "ruby/dl".

I define the function in "ruby/dl" like the belows

--------------------------------------
require 'dl'
LIB=DL.dlopen('libfunc.dll')
cfunc=LIB['cfunc','ISi'] # int cfunc(char *data,int *num)
---------------------------------------

After typing in irb, I typed them like this.

len=DL.malloc(DL.sizeof("I"))
err=cfunc.call("hello",len)

But, error message is displayed like the belows.

"TypeError: can't convert DL:

trData into Integer"

I'm not sure how to solve the problem.

Please let me know the reason and solutions for novice like me.

Then, Thank you in advance.

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