nerdcruft/libcruft-util
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view: allow arbitrary index types for slice and consume

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This commit is contained in:
Danny Robson 2018-07-24 15:49:38 +10:00
parent 79409eb6fe
commit f42ae40fcb
1 changed files with 8 additions and 5 deletions
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13
view.hpp
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@ -279,11 +279,12 @@ namespace util {
//--------------------------------------------------------------------- //---------------------------------------------------------------------
template <typename IndexT>
[[nodiscard]] constexpr auto [[nodiscard]] constexpr auto
split (int pos) const split (IndexT idx) const
{ {
auto last = m_begin; auto last = m_begin;
std::advance (last, pos); std::advance (last, idx);
return split (last); return split (last);
} }
@ -293,8 +294,9 @@ namespace util {
// "abc".slice(0, 3) == "abc" // "abc".slice(0, 3) == "abc"
// "abc".slice(0, -1) == "abc" // "abc".slice(0, -1) == "abc"
// "abc".slice(0, -2) == "ab" // "abc".slice(0, -2) == "ab"
[[nodiscard]] constexpr auto template <typename IndexA, typename IndexB>
slice (int a, int b) const [[nodiscard]]constexpr auto
slice (IndexA a, IndexB b) const
{ {
auto first = m_begin; auto first = m_begin;
auto last = m_begin; auto last = m_begin;
@ -307,8 +309,9 @@ namespace util {
//--------------------------------------------------------------------- //---------------------------------------------------------------------
template <typename IndexT>
[[nodiscard]] constexpr auto [[nodiscard]] constexpr auto
consume (int count) const consume (IndexT count) const
{ {
auto [a,b] = split (count); auto [a,b] = split (count);
(void)a; (void)a;