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Use smallest viable size in valptridx::array_base_count_type

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This commit is contained in:
Kp 2023-01-29 20:42:03 +00:00
parent 385d51b18e
commit bf7ba07e1f
2 changed files with 11 additions and 4 deletions
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13
common/include/valptridx.h
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@ -37,8 +37,15 @@ template <typename managed_type>
class valptridx<managed_type>::array_base_count_type
{
protected:
/* Use the smallest size that will store all legal values. Currently,
* no user has a maximum size that needs more than uint16_t, so reject
* attempts to use that size. This protects against silently getting
* the wrong result if a future change raises the maximum size above
* uint16_t.
*/
using count_type = typename std::conditional<(array_size <= UINT8_MAX), uint8_t, typename std::conditional<(array_size <= UINT16_MAX), uint16_t, void>::type>::type;
union {
unsigned count;
count_type count;
/*
* Use DXX_VALPTRIDX_FOR_EACH_PPI_TYPE to generate empty union
* members based on basic_{i,v}val_member_factory
@ -55,11 +62,11 @@ protected:
{
}
public:
unsigned get_count() const
count_type get_count() const
{
return count;
}
void set_count(const unsigned c)
void set_count(const count_type c)
{
count = c;
}

2
similar/editor/medwall.cpp
View file

@ -775,7 +775,7 @@ int wall_remove_side(const vmsegptridx_t seg, const sidenum_t side)
}
{
const auto num_walls = Walls.get_count();
const std::size_t num_walls{Walls.get_count()};
auto &&sr = partial_const_range(Walls, static_cast<unsigned>(lower_wallnum) + 2, num_walls);
std::move(sr.begin(), sr.end(), partial_range(Walls, static_cast<unsigned>(lower_wallnum), num_walls - 2).begin());
Walls.set_count(num_walls - 2);