Advances @iter, calling @pred on each character. If @pred returns %TRUE, returns %TRUE and stops scanning. If @pred never returns %TRUE, @iter is set to @limit if @limit is non-%NULL, otherwise to the end iterator.
a function to be called on each character
user data for @pred
search limit, or %NULL for none
whether a match was found
See Implementation
Advances @iter, calling @pred on each character. If @pred returns %TRUE, returns %TRUE and stops scanning. If @pred never returns %TRUE, @iter is set to @limit if @limit is non-%NULL, otherwise to the end iterator.