AI代码解释 #include"benchmark/benchmark.h"template<typenameT,class=typename std::enable_if_t<!std::is_unsigned_v<T>>>inline typename std::make_unsigned_t<T>mabs(T_val){constTmask=_val>>(sizeof(T)*8-1);return(_val+mask)^mask;}staticvoidBM_mabs(benchmark::State&state){for(auto ...
| 珊瑚贝 What is the advantage of std::enable_if over static_assert for class templates? 我想知道 std::enable_if 在防止模板实例化方面优于 static_asserts 的优势。这个答案表明,std::enable_if 允许 SFINAE,这在函数模板的情况下是一个令人信服的论点。 但是这个参数对于类模板(和变量模板)是否合法?
void func() { std::chrono::time_point<std::chrono::system_clock, std::chrono::milliseconds> tp(std::chrono::seconds(12)); cout << tp.time_since_epoch().count() << endl; std::time_t t = system_clock::to_time_t(tp); cout << "time " << ctime(&t) << endl; } 输出: ...
3.2. SmartPrintf (必须使用 C++) template<class T> inline typename std::enable_if<std::is_fundamental<T>::value, T>::type SmartData(T x) { return x; } template<class Seq> inline auto SmartData(const Seq& s) -> decltype(s.data()) { return s.data(); } template<class StdExceptio...
#include<type_traits>template<classT>classS{// public: // Uncomment this line to fixtypedeftypenameT type; };template<classT,std::enable_if<std::is_integral<typenameS<T>::type>::value, T> * =0>boolf(T x) {return(x ==0); }intmain(){ f(10);// C2672: No matching overloaded...
#include <type_traits> template< typename T> struct S { S() = default; S(const S&); S(S& &); template< typename U, typename = typename std::enable_if< std::is_base_of< T, U> ::value> ::type> S(S< U> & &); }; struct D; void f1() { S< D> s1; S< D> s2(...
()中直接写cout,即使没有`#include <iostream>`,也会给出`std::cout`的建议,配合"--header-insertion=iwyu",还可自动插入缺失的头文件 "--background-index", // 后台分析并保存索引文件 "--clang-tidy", // 启用 Clang-Tidy 以提供「静态检查」 "--clang-tidy-checks=performance-*, bugprone-*, ...
p4c-graphs my-p4-16-prog.p4 p4c-graphs --std p4-14 my-p4-14-prog.p4 Generate PDF of parser instance named "ParserImpl" generated by thep4c-graphscommand above (search for graphviz below for its install instructions): dot -Tpdf ParserImpl.dot>ParserImpl.pdf ...
如果使用-xalias_level=strong 选项,则与 std 级别应用相同限制,但此外,编译器还假定类型 char * 的指针只用来访问类型为 char 的对象。此外,编译器还假定不存在内部指针。内部指针被定义为指向结构成员的指针。 B.2.73 - xannotate[=yes|no] (Solaris) 指示编译器创建以后可由诸如 binopt(1) 之类的二进制修...
After the instrumented interpreter is built, the Makefile will run a training workload. This is necessary in order to profile the interpreter's execution. Note also that any output, both stdout and stderr, that may appear at this step is suppressed. ...