Print functions Defined in header<print> template<class...Args> voidprint(std::format_string<Args...>fmt, Args&&...args); (1)(since C++23) template<class...Args> voidprint(std::FILE*stream, std::format_string<Args...>fmt, Args&&...args); ...
prints to stdout or a file stream using formatted representation of the arguments (function template) println (C++23) same as std::print except that each print is terminated by additional new line (function template) C documentation for printf, fprintf, sprintf, snprintf Support...
自从引入用户定义字面量之后,使用定宽整数类型格式化宏常量且未在前导字符串字面量后加空格的情况变为非法:std::printf("%"PRId64"\n",INT64_MIN);必须替换成std::printf("%"PRId64"\n",INT64_MIN); 由于最大吞噬规则,以p、P、(C++17 起)e和E结束的用户定义整数和浮点数字面量,在后随运算符+或-...
std::wint_t 不适用不适用不适用不适用不适用 s 写入字符串。 实参必须是指向字符数组首元素的指针。 精度 指定写入最大的字符数。如果没有指定精度,那么写每个字节直到而不含首个空终止符。 如果使用l指示符,那么实参必须是指向wchar_t数组首元素的指针,数组会被转换成char数组,如同通过以零初始化转换状...
External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index C reference C89,C95,C99,C11,C17,C23│Compiler supportC99,C23 Language Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers Type support ...
>#include <vector>intmain(){// Create a vector containing integersstd::vector<int>v={8,4,5,9};// Add two more integers to vectorv.push_back(6);v.push_back(9);// Overwrite element at position 2v[2]=-1;// Print out the vectorfor(intn:v)std::cout<<n<<' ';std::cout<<...
{enum{CHAR, INT, DOUBLE} tag;union{charc;intn;doubled; }; };voidprint_s(constS&s) {switch(s.tag) {caseS::CHAR: std::cout << s.c <<'\n';break;caseS::INT: std::cout << s.n <<'\n';break;caseS::DOUBLE: std::cout << s.d <<'\n';break; ...
if ( strpos( $keywrd, "std::" ) !== false ) { $post_keywords = explode( "::", $keywrd); $keywords[] = $post_keywords[ count( $post_keywords ) - 1 ];} else if ( strpos( $keywrd, ":" ) !== false ) { $post_keywords = explode( ":", $keywrd); ...
#include <chrono>#include <iostream>usingClock=std::chrono::high_resolution_clock;usingTimePoint=std::chrono::time_point<Clock>;voidprint_ms(constTimePoint&point){usingMs=std::chrono::milliseconds;constClock::durationsince_epoch=point.time_since_epoch();std::cout<<std::chrono::duration_cast<...
#include <iostream>#include <string>#include <vector>#include <tuple>#include <memory>// helper function to print a tuple of any sizetemplate<classTuple,std::size_tN>structTuplePrinter{staticvoidprint(constTuple&t){TuplePrinter<Tuple, N-1>::print(t);std::cout<<", "<<std::get<N-1>...