As I submitted the PR, I found another snippet could be added for iterating in a descending fashion, to complement the one proposed, which iterates upwards. Either that, or generalize it so that it's just a regular for loop where the initialization, condition and step are just inlined, as such (for example):

for (init; cond; step) {
    /* cursor finally lands here */
}

To prevent further unnecessary commits or changes, I'll hold for a reply or an acknowledgement and fix the DCO "sign-off" issue when and if need be.