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Fix bug with List where replace() doesn't work with non-pointer types

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This commit is contained in:
Tim Wojtulewicz 2020-04-30 13:04:38 -07:00
parent fda9498276
commit 615f8cd443
1 changed files with 17 additions and 3 deletions
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20
src/List.h
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@ -240,16 +240,16 @@ public:
T replace(int ent_index, const T& new_ent) // replace entry #i with a new value
{
if ( ent_index < 0 )
return 0;
return get_default_value();
T old_ent = nullptr;
T old_ent = get_default_value();
if ( ent_index > num_entries - 1 )
{ // replacement beyond the end of the list
resize(ent_index + 1);
for ( int i = num_entries; i < max_entries; ++i )
entries[i] = nullptr;
entries[i] = get_default_value();
num_entries = max_entries;
}
else
@ -287,6 +287,20 @@ public:
protected:
T get_default_value()
{
if constexpr ( std::is_pointer_v<T> )
return nullptr;
else if constexpr ( std::is_integral_v<T> )
return 0;
else if constexpr ( std::is_floating_point_v<T> )
return 0.0;
else
// TODO: Should this return an error at compile time that we don't
// know what this type is?
return T();
}
// This could essentially be an std::vector if we wanted. Some
// reasons to maybe not refactor to use std::vector ?
//