deduction guides for std::ranges::lazy_split_view
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< cpp | ranges | lazy split view
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template< class R, class P >
(1)
(since C++20)
lazy_split_view( R&&, P&& )
template< ranges::input_range R >
(2)
(since C++20)
lazy_split_view( R&&, ranges::range_value_t <R> )
-> lazy_split_view<views::all_t <R>,
These deduction guides are provided for lazy_split_view to allow deduction from a range and a delimiter.
1) The delimiter is a range of elements.
2) The delimiter is a single element.
[edit] Example
Run this code
#include <ranges> #include <string_view> #include <type_traits> using std::operator""sv; int main() { std::ranges::lazy_split_view w1{"a::b::c"sv, "::"sv}; // type of w1 is lazy_split_view<string_view, string_view>: static_assert(std::is_same_v < decltype(w1), std::ranges::lazy_split_view < std::basic_string_view <char, std::char_traits <char>>, std::basic_string_view <char, std::char_traits <char>>>>); std::ranges::lazy_split_view w2{"x,y,z"sv, ','}; // type of w2 is lazy_split_view<string_view, single_view<char>>: static_assert(std::is_same_v < decltype(w2), std::ranges::lazy_split_view < std::basic_string_view <char, std::char_traits <char>>, std::ranges::single_view <char>>>); }