How do I create a sparse file programmatically, in C, on Mac OS X?

Question

I\'d like to create a sparse file such that all-zero blocks don\'t take up actual disk space until I write data to them. Is it possible?

Answer 1

This thread becomes a comprehensive source of info about the sparse files. Here is the missing part for Win32:

Decent article with examples

Tool that estimates if it makes sense to make file as sparse

Regards