问题
I am trying to use std::move in my codes, but the compiler (g++ 4.4) I am using does not support it. Can boost::move substitute std::move completely? Thanks.
回答1:
std::move (and boost::move when c++0x support is enabled) is just a cast from T& to T&&. It does not actually move anything. This means that the specific type of pointer T&& must be supported by the compiler. GCC supports r-value references since version 4.3, so the boost version should be fine.
However, is there a reason you can't use std::move from #include <utility>?
http://en.cppreference.com/w/cpp/utility/move
You just need to make sure to specify -std=c++0x as a compiler option in order to enable the limited c++11 support that gcc 4.4 has.
回答2:
Yes it can
What is Boost.Move?
Rvalue references are a major C++0x feature, enabling move semantics for C++ values. However, we don't need C++0x compilers to take advantage of move semanatics. Boost.Move emulates C++0x move semantics in C++03 compilers and allows writing portable code that works optimally in C++03 and C++0x compilers.
Source: http://www.boost.org/doc/libs/1_59_0_b1/doc/html/move.html
来源：https://stackoverflow.com/questions/38761626/the-counterpart-of-stdmove-in-boost-library