#include <cstddef> #include <iostream> #include <limits> #include <string_view> #include <type_traits> template<typename T> void print_max_twice(std::string_view type) { constexpr T max_value {std::numeric_limits<T>::max()}; std::cout << type << ": "; if constexpr (std::is...
std::cout << "Lowest value for float: " << std::numeric_limits<float>::lowest() << std::endl; // the lowest value std::cout << "Maximum value for float: " << std::numeric_limits<float>::max() << std::endl; std::cout << "float is signed: " << std::numeric_limits<fl...
std::numeric_limits::max 参数:它接收任何一种数据类型,即T。 返回类型:根据类型T,它返回预定义的宏,是true还是默认T()。一些标准返回值是: Type Tstd::numeric_limits::max() /* non-specialized */ T() bool TRUE char CHAR_MAX signed char SCHAR_MAX unsigned char UCHAR_MAX wchar_t WCHAR_MAX...
The value ofstd::numeric_limits<T>::max_exponentis the largest positive numbernsuch thatrn-1 , whererisstd::numeric_limits<T>::radix, is a representable finite value of the floating-point typeT. Standard specializations Tvalue ofstd::numeric_limits<T>::max_exponent ...
using namespace std; int main(){ cout<<"numeric_limits<int>::min()= "<<numeric_limits<int>::min()<<endl; cout<<"numeric_limits<int>::max()= "<<numeric_limits<int>::max()<<endl; cout<<"numeric_limits<short>::min()= "<<numeric_limits<short>::min()<<endl; cout<<"...
() << std::endl;//min returns the smallest positive value the type can encode, not the loweststd::cout <<"Lowest value for float:"<< std::numeric_limits<float>::lowest() << std::endl;//the lowest valuestd::cout <<"Maximum value for float:"<< std::numeric_limits<float>::max...
max_align_t (C++11) byte (C++17) Numeric limits numeric_limits C numeric limits interface Runtime type information type_info type_index (C++11) bad_typeid bad_cast std::numeric_limits Static constants numeric_limits::is_specialized numeric_limits::is_signed ...
#include<iostream>#include<cstdlib>#include<limits>intmain(){std::cout<<"Minimum value for int: "<<std::numeric_limits<int>::min()<<std::endl;std::cout<<"Maximum value for int: "<<std::numeric_limits<int>::max()<<std::endl;std::cout<<"int is signed: "<<std::numeric_limits...
#include <iostream>#include <type_traits>#include <limits>template<classT>typenamestd::enable_if<std::numeric_limits<T>::is_modulo>::typecheck_overflow(){std::cout<<"\nmax value is "<<std::numeric_limits<T>::max()<<'\n'<<"min value is "<<std::numeric_limits<T>::min()<<'\...
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