Because the constructors provided by the compiler can’t always do what we want to do.
More Related Contents:
- Which kind of pointer do I use when?
- std::enable_if to conditionally compile a member function
- Is std::unique_ptr required to know the full definition of T?
- Why can I not push_back a unique_ptr into a vector?
- Are the days of passing const std::string & as a parameter over?
- Is it safe to link C++17, C++14, and C++11 objects
- What is the partial ordering procedure in template deduction
- C++11: I can go from multiple args to tuple, but can I go from tuple to multiple args? [duplicate]
- Volatile in C++11
- Move-only version of std::function
- What do each memory_order mean?
- Do I really need to implement user-provided constructor for const objects?
- Can I safely use OpenMP with C++11?
- std::to_string – more than instance of overloaded function matches the argument list
- Why does the standard differentiate between direct-list-initialization and copy-list-initialization?
- std::unique_ptr for C functions that need free
- C++11 “overloaded lambda” with variadic template and variable capture
- How can I use Standard Library (STL) classes in my dll interface or ABI?
- Is it valid to bind non-const lvalue-references to rvalues in C++ 11?(modified)
- What’s the difference between parentheses and braces in c++ when constructing objects
- cc1plus: error: unrecognized command line option “-std=c++11” with g++
- How do I pass multiple ints into a vector at once?
- Is it wise to ignore gcc/clang’s “-Wmissing-braces” warning?
- Why does pointer to int convert to void* but pointer to function convert to bool?
- Can std::vector emplace_back copy construct from an element of the vector itself?
- boost::asio + std::future – Access violation after closing socket
- Why would I std::move an std::shared_ptr?
- Why aren’t there compiler-generated swap() methods in C++0x?
- std::enable_if : parameter vs template parameter
- Why must an enumeration’s size be provided when it is forward declared?