Function CSTL_u16string_replace_char

pub unsafe extern "C" fn CSTL_u16string_replace_char(
    instance: CSTL_UTF16StringRef,
    first: *const char16_t,
    last: *const char16_t,
    count: usize,
    ch: char16_t,
    alloc: *mut CSTL_Alloc,
) -> bool

Replaces the characters in the range [first, last) with count copies of the character ch.

If the length of the resulting string is greater than CSTL_u16string_max_size() this function has no effect and returns false, otherwise it returns true.

If first == last, no operation is performed.

The range [first, last) must be valid and dereferenceable on instance.