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Code Issues Releases Wiki Activity

ircd::util: Allow variable increment for scope_count.

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This commit is contained in:
Jason Volk 2020-05-06 17:30:12 -07:00
parent fd1db1b208
commit f34cc52043
1 changed files with 7 additions and 4 deletions
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11
include/ircd/util/scope_count.h
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@ -24,18 +24,21 @@ template<class T>
struct ircd::util::scope_count
{
T *count {nullptr};
T inc {1};
scope_count(T &count);
scope_count(T &count, const T & = 1);
scope_count(const scope_count &) = delete;
scope_count(scope_count &&) noexcept = delete;
~scope_count() noexcept;
};
template<class T>
ircd::util::scope_count<T>::scope_count(T &count)
ircd::util::scope_count<T>::scope_count(T &count,
const T &inc)
:count{&count}
,inc{inc}
{
++count;
count += inc;
}
template<class T>
@ -43,5 +46,5 @@ ircd::util::scope_count<T>::~scope_count()
noexcept
{
assert(count);
--(*count);
(*count) -= inc;
}