push_backing to a vector of non-const elements works as expected:
std::vector<int> foo;
int bar = 0;
foo.push_back(bar);
But why is the following not possible?
std::vector<const int> foo;
const int bar = 0;
foo.push_back(bar);
More precisely, why is creating the foo object possible but not calling push_back on it?
According to this answer (with commentary from one of the C++11 designers), std::vector<const T> is not permitted by the Standard.
The answer suggests that it might be possible to supply a custom allocator which permits a vector with that allocator to hold const objects.
You're probably better off not attempting to do this.
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments