Hi, John Steele Scott <[EMAIL PROTECTED]> writes:
>> Now, I'd rather use a Scheme vector to represent a C vector so that it >> wouldn't need to be traversed at "marshalling"-time. > > Yes, I notice a deprecated gh_scm2doubles (SCM VECTOR, double *RESULT) in > the manual, that would have made this much simpler. > > Do you know the purpose of the second argument to scm_num2dbl (called > "why")? I notice that guile 1.8 has a scm_to_double which does not have > this second argument, but I'm stuck with 1.6 for the time being. No, I'm not familiar with the API in 1.6. My point was: if you use a list, then you have to traverse it in order to produce the C array. In 1.8, there are SRFI-4 arrays which you can directly access using a regular C pointer, which is certainly what you'd want here. Now, SRFI-4 isn't available in 1.6 IIRC. So you could use regular Scheme vectors instead, but then you'd have to convert every element of the array... Hope this helps, Ludovic. _______________________________________________ g-wrap-dev mailing list g-wrap-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/g-wrap-dev
