注:std::make_any会新建对象 autoa10 = std::make_any<float>(3.0); autoa11 = std::make_any<std::string>("hello"); autoa13 = std::make_any<std::complex<double>>(3.0,4.0); autoa14 = std::make_any<std::set<int,decltype(sc)
C library: <cassert> (assert.h) <cctype> (ctype.h) <cerrno> (errno.h) C++11 <cfenv> (fenv.h) <cfloat> (float.h) C++11 <cinttypes> (inttypes.h) <ciso646> (iso646.h) <climits> (limits.h) <clocale> (locale.h) <cmath> (math.h) <csetjmp> (setjmp.h) <csignal> (...
public member function <memory> std::shared_ptr::unique bool unique() const noexcept; Check if unique Returns whether theshared_ptrobject does not share ownership over its pointer with othershared_ptrobjects (i.e., it isunique). Empty pointers are neverunique(as they do not own any pointers...
make install 安装时编译代码遇到的错误: warning:non-static data member initializers only availablewith-std=c++11or-std=gnu++11[enabled by default]floatconfidence=0;error:'shared_ptr'innamespace'std'doesnotname atype 解决方法: 这是因为要使用C++11的标准编译,修改方法是在CMakeLists.txt文件里面添加:...
public member function <memory> std::shared_ptr::reset (1) void reset() noexcept; (2) template <class U> void reset (U* p); (3) template <class U, class D> void reset (U* p, D del); (4) template <class U, class D, class Alloc> void reset (U* p, D del, Alloc alloc...
Anothershared_ptrobject of the same type (i.e., with the same class template parameterT). Return value none Example 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 // shared_ptr::swap example#include <iostream>#include <memory>intmain () { std::shared_ptr<int> foo (newint(10)); st...