Pretty-Printing std::tuple
?? ???? ??? Pretty-Printing STL ????? ?? ??? ???? ??????. ?? std::tuple
std::pair
std::ostream &operator<<(std::ostream &o, const std::pair<S,T> &p)
{
return o << "(" << p.first << ", " << p.second << ")";
}?? ??? ?????? ??? ?? ?? ? ??? ??:
namespace aux{
template<std::size_t... Is> struct seq{}; // dummy helper type
template<std::size_t N, std::size_t... Is>
struct gen_seq : gen_seq<N-1, N-1, Is...>{};
template<std::size_t... Is>
struct gen_seq<0, Is...>: seq<Is...>{};
template<class Ch, class Tr, class Tuple, std::size_t... Is>
void print_tuple(std::basic_ostream<Ch,Tr>& os, Tuple const& t, seq<Is...>){ // overload to print tuples
using swallow = int[]; // silence unused warning
(void)swallow{0, (void(os << (Is == 0? "" : ", ") << std::get<Is>(t)), 0)...};
}
}
template<class Ch, class Tr, class... Args>
auto operator<<(std::basic_ostream<Ch, Tr>& os, std::tuple<Args...> const& t) -> std::basic_ostream<Ch, Tr>&
{
os << "(";
aux::print_tuple(os, t, aux::gen_seq<sizeof...(Args)>()); // call template overload with index helper to print
return os << ")";
}??? ?? ?? ??(?: char ? wchar_t)? ????? ?? ???? ??? ? ????.
// Delimiters for tuple
template<class... Args>
struct delimiters<std::tuple<Args...>, char> {
static const delimiters_values<char> values;
};
template<class... Args>
const delimiters_values<char> delimiters<std::tuple<Args...>, char>::values = { "(", ", ", ")" };
template<class... Args>
struct delimiters<std::tuple<Args...>, wchar_t> {
static const delimiters_values<wchar_t> values;
};
template<class... Args>
const delimiters_values<wchar_t> delimiters<std::tuple<Args...>, wchar_t>::values = { L"(", L", ", L")" };
??? ???? ?????<< ?? ?? print_tuple:
template<class Ch, class Tr, class... Args>
auto operator<<(std::basic_ostream<Ch, Tr>& os, std::tuple<Args...> const& t) -> std::basic_ostream<Ch, Tr>&
{
typedef std::tuple<Args...> tuple_t;
if(delimiters<tuple_t, Ch>::values.prefix != 0)
os << delimiters<tuple_t,char>::values.prefix;
print_tuple(os, t, aux::gen_seq<sizeof...(Args)>());
if(delimiters<tuple_t, Ch>::values.postfix != 0)
os << delimiters<tuple_t,char>::values.postfix;
return os;
}
template<class Ch, class Tr, class Tuple, std::size_t... Is>
void print_tuple(std::basic_ostream<Ch, Tr>& os, Tuple const& t, seq<Is...>){
char const* delim = delimiters<Tuple, Ch>::values.delimiter;
if(!delim) delim = "";
(void)swallow{0, (void(os << (Is == 0? "" : delim) << std::get<Is>(t)), 0)...};
}
?? ??? ?? ?? ??? ???? std::tuple? ???? ?? ??? ?? ?????.
auto a = std::make_tuple(5, "Hello", -0.1); std::cout << a << std::endl; // prints: (5, "Hello", -0.1)
? ??? ?? ???? ??? ?? ?? ??? ???? `std::tuple`? ??? ??? ??? ? ????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
? AI ??
Undress AI Tool
??? ???? ??
Undresser.AI Undress
???? ?? ??? ??? ?? AI ?? ?
AI Clothes Remover
???? ?? ???? ??? AI ?????.
Clothoff.io
AI ? ???
Video Face Swap
??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!
?? ??
??? ??
???++7.3.1
???? ?? ?? ?? ???
SublimeText3 ??? ??
??? ??, ???? ?? ????.
???? 13.0.1 ???
??? PHP ?? ?? ??
???? CS6
??? ? ?? ??
SublimeText3 Mac ??
? ??? ?? ?? ?????(SublimeText3)
std :: Chrono ?? c
Jul 15, 2025 am 01:30 AM
STD :: Chrono? ?? ?? ??, ?? ?? ??, ?? ?? ? ?? ?? ? ?? ?? ??? ???? C?? ???? ??? ?????. 1. std :: chrono :: system_clock :: now ()? ???? ?? ??? ?? ? ??? ?? ??? ???? ?? ? ? ??? ??? ??? ???? ?? ?? ? ????. 2. std :: Chrono :: steady_clock? ???? ?? ??? ???? ?? ??? ???? duration_cast? ?? ?? ?, ? ? ?? ??? ??????. 3. ?? (time_point) ? ?? (??)? ?? ??? ? ? ??? ?? ??? ? ?? epoch (epoch)???? ???????.
C?? ?? ??? ?? ???
Jul 07, 2025 am 01:41 AM
C : 1?? ?? ????? ?? ??? ?? ??? ????. Linux ????? Backtrace ? Backtrace_symbols ??? ??????. ?? ?? ? ?? ?? ??? ???? ??? ? ? -rdynamic ?? ??? ???????. 2. Windows ????? CaptUreStackBackTrace ??? ???? DBGHELP.LIB? ???? PDB ??? ???? ?? ??? ?? ???????. 3. GoogleBreakPad ?? Boost.StackTrace? ?? ?? ?????? ???? ?? ??? ? ?? ?? ??? ??????. 4. ?? ???? ?? ??? ???? ?? ???? ?? ??? ???? ?????.
C? POD (?? ?? ???) ??? ??????
Jul 12, 2025 am 02:15 AM
C??, POD (PANDALDATA) ??? ??? ??? ?? ??? ???? C ?? ??? ??? ?????. ??? ? ?? ??? ????????. ??? ??? ?? ???? ???, ?? memcpy? ?? ?? ? ? ????. ?? ????? ?? ??? ??? ??? ? ????. ?? ?? ???? ??? ?????. ?? ? ?? ??? ??, ??? ?? ??? ?? ???, ?? ?? ?? ?? ??? ?? ? ?? ? ?? ?? ??? ?????. ?? ?? structpoint {intx; inty;}? pod???. ??? ???? ???? I/O, C ?? ???, ?? ??? ?? ?????. std :: is_pod? ?? ??? POD?? ??? ? ??? C 11 ??? std :: is_trivia? ???? ?? ????.
C?? Python? ???? ???
Jul 08, 2025 am 12:40 AM
C?? Python Code? ????? ?? ???? ??? ? ?? ???, ?? ?? ?? ??? ???? ?? ??? ?? ? ? ????. 1. Py_Initialize ()? ?????? ????? py_finalize ()? ????. 2. pyrun_simplefile? ???? ??? ?? ?? pyrun_simplefile? ?????. 3. pyimport_importmodule? ?? ?? ?? ??, pyobject_getattrstring? ?? ??? ???? py_buildvalue? ?? ??? ???? ??? ???? ???? ??
C? ??? ??? ??? ??????
Jul 05, 2025 am 01:44 AM
functionhiding alkes ressaMenaMeAsabaseClassFunctions? henaderivedClassDefinesAftunction, theBaseInAccessibleThroughTheDerivedClass.thishAppenswhentheBaseFunctionis notvirtualorsignaturesdon n'tmatchforevered, and nousingdeclarationis
C?? ??? ?? ??? ???? ??? ??????
Jul 12, 2025 am 01:34 AM
C?? ??? ?? ??? ???? ? ?? ?? ??? ???? : ?? ??? ??, std :: ?? ? ?? ??? ? ??? ???. 1. ?? ???? ?? ???? ???? ??? ???? ?? C ?????? ????? ???? ?? ????. 2. STD :: LAMBDA ???? ?? ? ??? ?? C?? ???? ???? ??? ?? ??? ??? ???? ??-?????. 3. ??? ?? ??? ?? ???? ????? ?? ?? ?? ??? ????? ??? ??? ?? ??? ???? ? ????. ????? ???? ??? std :: ?? ?? ???? ?? ??????? ?? ???? ?? ?? ? ? ????.
C? ? ??? ? ??????
Jul 09, 2025 am 02:38 AM
anullpointerinc isaspecialValueindicating thatapointerspointtoanyvalidmorylocation, anditusiusedToSafelyManageNageanDcheckPointersbeforedEereferencing.1.Beforec 11,0ornull? WASSED, BUTNULLPTRISFREFERREDFORITYONDTYPESAFETY.SUNULLPOINTETYTETETENULUNULPENTETETETENGE
std :: c?? ??? ??????
Jul 07, 2025 am 01:27 AM
STD :: MOVE? ??? ???? ???? ?? ??? rvalue ??? ???? ????? ??? ?? ??? ??? ? ??? ?????. ?? ??, ??? ????? ? ???? ???? ???? ???? ?? ?? ??? ???? ?? ?? ?? ???? ?? ? ? ????. ?? ?? ??, ???? ?? ?? ??? ??? ?? ???? ???? ??? ?? ???? ?????? ???????. ??? ?? ????? ???? ???? ??? ????? ???, ?? ?? ??? ??? ?? ???? ????. ??? ????? ?? ? ? ??? ?? ???? ??? ?? ? ??? ??? ?? ??? ???? ?? RVO ???? ?? ??? ? ???? STD :: ??? ???? ???? ??? ? ? ????. ??? ???? ?? ???? ??? ?????? ??, ???? ??? ? ??? ??? ??? ?? ??? ?????.
