libstdc++: Change class-key for duration and time_point to class

We define these with the 'struct' keyword, but the standard uses
'class'. This results in warnings if users try to refer to them using
elaborated type specifiers.

libstdc++-v3/ChangeLog:

	* include/bits/chrono.h (duration, time_point): Change 'struct'
	to 'class'.
This commit is contained in:
Jonathan Wakely 2022-12-02 16:18:43 +00:00
parent e6110da479
commit 7eec3114eb

View file

@ -59,11 +59,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// `chrono::duration` represents a distance between two points in time
template<typename _Rep, typename _Period = ratio<1>>
struct duration;
class duration;
/// `chrono::time_point` represents a point in time as measured by a clock
template<typename _Clock, typename _Dur = typename _Clock::duration>
struct time_point;
class time_point;
/// @}
}
@ -431,14 +431,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/// @endcond
template<typename _Rep, typename _Period>
struct duration
class duration
{
static_assert(!__is_duration<_Rep>::value, "rep cannot be a duration");
static_assert(__is_ratio<_Period>::value,
"period must be a specialization of ratio");
static_assert(_Period::num > 0, "period must be positive");
private:
template<typename _Rep2>
using __is_float = treat_as_floating_point<_Rep2>;
@ -844,11 +843,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#undef _GLIBCXX_CHRONO_INT64_T
template<typename _Clock, typename _Dur>
struct time_point
class time_point
{
static_assert(__is_duration<_Dur>::value,
"duration must be a specialization of std::chrono::duration");
public:
typedef _Clock clock;
typedef _Dur duration;
typedef typename duration::rep rep;