boostorg/mp11
1
0
Fork 1
mirror of https://github.com/boostorg/mp11.git synced 2025-12-04 23:59:21 +01:00
Code Issues Packages Projects Releases Wiki Activity

Implement mp_starts_with

Browse Source
This commit is contained in:
Glen Fernandes
2018-08-30 22:35:23 -04:00
parent 2364f79088
commit f387448581
5 changed files with 142 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
include/boost/mp11/algorithm.hpp
View File

@@ -987,6 +987,30 @@ template<class L, class I, class J> using mp_erase = mp_append<mp_take<L, I>, mp
// mp_erase_c<L, I, J>
template<class L, std::size_t I, std::size_t J> using mp_erase_c = mp_append<mp_take_c<L, I>, mp_drop_c<L, J>>;
// mp_starts_with<L1, L2>
// contributed by Glen Joseph Fernandes (glenjofe@gmail.com)
namespace detail {
template<class L1, class L2>
struct mp_starts_with_impl { };
template<template<class...> class L1, class... T1, template<class...> class L2,
class... T2>
struct mp_starts_with_impl<L1<T1...>, L2<T2...> > {
template<class L>
static mp_false check(L);
template<class... T>
static mp_true check(mp_list<T2..., T...>);
using type = decltype(check(mp_list<T1...>()));
};
} // namespace detail
template<class L1, class L2>
using mp_starts_with = typename detail::mp_starts_with_impl<L1, L2>::type;
// mp_min_element<L, P>
// mp_max_element<L, P>
// in detail/mp_min_element.hpp