int类型的变量存储值从-2147483648到2147483647
//例子
#include <iostream>
using namespace std;
int main(void)
{ cout<<"int类型的取值范围为:"<<INT_MIN<<"到"<<INT_MAX<<endl;
return ;
}
unsigned int类型的变量存储值从0到4294967295
//例子
#include <iostream>
using namespace std;
int main(void)
{
cout<<"unsigned int类型的取值范围为:0到"<<UINT_MAX<<endl;
return ;
}
short类型的变量存储值从-32768到32767
unsigned short类型的变量存储值从0到65535
char类型的变量存储值从-128到127
unsigned char类型的变量存储值从0到255
long类型的变量存储值从-2147483648到2147483647
unsigned long类型的变量存储值从0到4294967295
long long类型的变量存储值从-9223372036854775808到9223372036854775807
unsigned long long类型的变量存储值从0到18446744073709551615
最小的非零float类型变量的值的是1.175e-038
最大的float类型变量的值的是3.403e+038
最小的非零double类型变量的值的是2.225e-308
最大的double类型变量的值的是1.798e+308
最小的非零long double类型变量的值的是-0.000e+000
最大的long double类型变量的值的是-1.#QOe+000
float类型的变量提供6位精度的小数位数
double类型的变量提供15位精度的小数位数
long double类型的变量提供18位精度的小数位数
#include <stdio.h>
#include <limits.h>
#include <float.h>
#include <stdlib.h>
int main(void) { printf("char类型的变量存储值从%d到%d\n", CHAR_MIN, CHAR_MAX); printf("unsigned char类型的变量存储值从0到%u\n", UCHAR_MAX); printf("short类型的变量存储值从%d到%d\n", SHRT_MIN, SHRT_MAX); printf("unsigned short类型的变量存储值从0到%u\n", USHRT_MAX); printf("int类型的变量存储值从%d到%d\n", INT_MIN, INT_MAX); printf("unsigned int类型的变量存储值从0到%u\n", UINT_MAX); printf("long类型的变量存储值从%ld到%ld\n", LONG_MIN, LONG_MAX); printf("unsigned long类型的变量存储值从0到%lu\n\n", ULONG_MAX); printf("long long类型的变量存储值从%lld到%lld\n", LLONG_MIN, LLONG_MAX); printf("unsigned long long类型的变量存储值从0到%llu\n", ULLONG_MAX); printf("最小的非零float类型变量的值的是%.3e\n", FLT_MIN); printf("最大的float类型变量的值的是%.3e\n", FLT_MAX); printf("最小的非零double类型变量的值的是%.3e\n", DBL_MIN); printf("最大的double类型变量的值的是%.3e\n\n", DBL_MAX); printf("最小的非零long double类型变量的值的是%.3Le\n", LDBL_MIN); printf("最大的long double类型变量的值的是%.3Le\n", LDBL_MAX); printf("float类型的变量提供%u位精度的小数位数\n", FLT_DIG); printf("double类型的变量提供%u位精度的小数位数\n\n", DBL_DIG); printf("long double类型的变量提供%u位精度的小数位数\n", LDBL_DIG); system("pause"); return ;
}
#include<iostream>
#include<string>
#include <limits>
using namespace std; int main()
{ cout << "type: \t\t" << "************size**************"<< endl;
cout << "bool: \t\t" << "所占字节数:" << sizeof(bool);
cout << "\t最大值:" << (numeric_limits<bool>::max)();
cout << "\t\t最小值:" << (numeric_limits<bool>::min)() << endl;
cout << "char: \t\t" << "所占字节数:" << sizeof(char);
cout << "\t最大值:" << (numeric_limits<char>::max)();
cout << "\t\t最小值:" << (numeric_limits<char>::min)() << endl;
cout << "signed char: \t" << "所占字节数:" << sizeof(signed char);
cout << "\t最大值:" << (numeric_limits<signed char>::max)();
cout << "\t\t最小值:" << (numeric_limits<signed char>::min)() << endl;
cout << "unsigned char: \t" << "所占字节数:" << sizeof(unsigned char);
cout << "\t最大值:" << (numeric_limits<unsigned char>::max)();
cout << "\t\t最小值:" << (numeric_limits<unsigned char>::min)() << endl;
cout << "wchar_t: \t" << "所占字节数:" << sizeof(wchar_t);
cout << "\t最大值:" << (numeric_limits<wchar_t>::max)();
cout << "\t\t最小值:" << (numeric_limits<wchar_t>::min)() << endl;
cout << "short: \t\t" << "所占字节数:" << sizeof(short);
cout << "\t最大值:" << (numeric_limits<short>::max)();
cout << "\t\t最小值:" << (numeric_limits<short>::min)() << endl;
cout << "int: \t\t" << "所占字节数:" << sizeof(int);
cout << "\t最大值:" << (numeric_limits<int>::max)();
cout << "\t最小值:" << (numeric_limits<int>::min)() << endl;
cout << "unsigned: \t" << "所占字节数:" << sizeof(unsigned);
cout << "\t最大值:" << (numeric_limits<unsigned>::max)();
cout << "\t最小值:" << (numeric_limits<unsigned>::min)() << endl;
cout << "long: \t\t" << "所占字节数:" << sizeof(long);
cout << "\t最大值:" << (numeric_limits<long>::max)();
cout << "\t最小值:" << (numeric_limits<long>::min)() << endl;
cout << "unsigned long: \t" << "所占字节数:" << sizeof(unsigned long);
cout << "\t最大值:" << (numeric_limits<unsigned long>::max)();
cout << "\t最小值:" << (numeric_limits<unsigned long>::min)() << endl;
cout << "double: \t" << "所占字节数:" << sizeof(double);
cout << "\t最大值:" << (numeric_limits<double>::max)();
cout << "\t最小值:" << (numeric_limits<double>::min)() << endl;
cout << "long double: \t" << "所占字节数:" << sizeof(long double);
cout << "\t最大值:" << (numeric_limits<long double>::max)();
cout << "\t最小值:" << (numeric_limits<long double>::min)() << endl;
cout << "float: \t\t" << "所占字节数:" << sizeof(float);
cout << "\t最大值:" << (numeric_limits<float>::max)();
cout << "\t最小值:" << (numeric_limits<float>::min)() << endl;
cout << "size_t: \t" << "所占字节数:" << sizeof(size_t);
cout << "\t最大值:" << (numeric_limits<size_t>::max)();
cout << "\t最小值:" << (numeric_limits<size_t>::min)() << endl;
cout << "string: \t" << "所占字节数:" << sizeof(string) << endl;
// << "\t最大值:" << (numeric_limits<string>::max)() << "\t最小值:" << (numeric_limits<string>::min)() << endl;
cout << "type: \t\t" << "************size**************"<< endl;
return ;
}