Hi, is the effective way to return data from XS to perl without unnecessary memory coping ? As I understand
1) if I return char*, then perl creates SV and copies the string to SV. 2) if I create SV using newSVpvn() and return it, then newSVpvn() copies string to SV, then perl creates another SV (because my SV is mortal) and again copies the string to its SV. If I need to pass data with '\0's, then I have to use second way with two copy operations. Is there way to set pointers only ? And is there way to concatenate two memory blocks into one SV using minumum copy operations ? Igor Sysoev http://sysoev.ru/en/