C/C++中各种类型int、long long、double表示范围(最大最小值)
#include<iostream> #include<string> #include <limits> using namespace std; int main() { cout << "type: " << "************size**************"<< endl; cout << "short: " << "字节数:" << sizeof(short) <<endl; cout << "最大值:" << (numeric_limits<short>::max)(); cout << " 最小值:" << (numeric_limits<short>::min)() << endl; cout << "int: " << "字节数:" << sizeof(int) <<endl; cout << "最大值:" << (numeric_limits<int>::max)(); cout << " 最小值:" << (numeric_limits<int>::min)() << endl; cout << "unsigned: " << "字节数:" << sizeof(unsigned) <<endl; cout << "最大值:" << (numeric_limits<unsigned>::max)(); cout << " 最小值:" << (numeric_limits<unsigned>::min)() << endl; cout << "long: " << "字节数:" << sizeof(long) <<endl; cout << "最大值:" << (numeric_limits<long>::max)(); cout << " 最小值:" << (numeric_limits<long>::min)() << endl; cout << "unsigned long: " << "字节数:" << sizeof(unsigned long) <<endl; cout << "最大值:" << (numeric_limits<unsigned long>::max)(); cout << " 最小值:" << (numeric_limits<unsigned long>::min)() << endl; cout << "long long: " << "字节数:" << sizeof(long long) <<endl; cout << "最大值:" << (numeric_limits<long long>::max)(); cout << " 最小值:" << (numeric_limits<long long>::min)() << endl; cout << "unsigned long long: " << "字节数:" << sizeof(unsigned long long) <<endl; cout << "最大值:" << (numeric_limits<unsigned long long>::max)(); cout << " 最小值:" << (numeric_limits<unsigned long long>::min)() << endl; cout << "double: " << "字节数:" << sizeof(double) <<endl; cout << "最大值:" << (numeric_limits<double>::max)(); cout << " 最小值:" << (numeric_limits<double>::min)() << endl; cout << "long double: " << "字节数:" << sizeof(long double) <<endl; cout << "最大值:" << (numeric_limits<long double>::max)(); cout << " 最小值:" << (numeric_limits<long double>::min)() << endl; cout << "float: " << "字节数:" << sizeof(float) <<endl; cout << "最大值:" << (numeric_limits<float>::max)(); cout << " 最小值:" << (numeric_limits<float>::min)() << endl; return 0; }
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