c c++各种类型的取值范围

int类型的变量存储值从-2147483648到2147483647

//例子
#include <iostream>
2 using namespace std;
3 int main(void)
4 {
5 
6     cout<<"int类型的取值范围为："<<INT_MIN<<"到"<<INT_MAX<<endl;
7     return 0;
8 }

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 0;
}

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
", CHAR_MIN, CHAR_MAX);

    printf("unsigned char类型的变量存储值从0到%u
", UCHAR_MAX);

    printf("short类型的变量存储值从%d到%d
", SHRT_MIN, SHRT_MAX);

    printf("unsigned short类型的变量存储值从0到%u
", USHRT_MAX);

    printf("int类型的变量存储值从%d到%d
", INT_MIN, INT_MAX);

    printf("unsigned int类型的变量存储值从0到%u
", UINT_MAX);

    printf("long类型的变量存储值从%ld到%ld
", LONG_MIN, LONG_MAX);

    printf("unsigned long类型的变量存储值从0到%lu

", ULONG_MAX);

    printf("long long类型的变量存储值从%lld到%lld
", LLONG_MIN, LLONG_MAX);

    printf("unsigned long long类型的变量存储值从0到%llu
", ULLONG_MAX);

    printf("最小的非零float类型变量的值的是%.3e
", FLT_MIN);

    printf("最大的float类型变量的值的是%.3e
", FLT_MAX);

    printf("最小的非零double类型变量的值的是%.3e
", DBL_MIN);

    printf("最大的double类型变量的值的是%.3e

", DBL_MAX);

    printf("最小的非零long double类型变量的值的是%.3Le
", LDBL_MIN);

    printf("最大的long double类型变量的值的是%.3Le
", LDBL_MAX);

    printf("float类型的变量提供%u位精度的小数位数
", FLT_DIG);

    printf("double类型的变量提供%u位精度的小数位数

", DBL_DIG);

    printf("long double类型的变量提供%u位精度的小数位数
", LDBL_DIG);

    system("pause");

    return 0;
}

#include<iostream>
#include<string>
#include <limits>
using namespace std;

int main()
{

    cout << "type: 		" << "************size**************"<< endl;
    cout << "bool: 		" << "所占字节数：" << sizeof(bool);
    cout << "	最大值：" << (numeric_limits<bool>::max)();
    cout << "		最小值：" << (numeric_limits<bool>::min)() << endl;
    cout << "char: 		" << "所占字节数：" << sizeof(char);
    cout << "	最大值：" << (numeric_limits<char>::max)();
    cout << "		最小值：" << (numeric_limits<char>::min)() << endl;
    cout << "signed char: 	" << "所占字节数：" << sizeof(signed char);
    cout << "	最大值：" << (numeric_limits<signed char>::max)();
    cout << "		最小值：" << (numeric_limits<signed char>::min)() << endl;
    cout << "unsigned char: 	" << "所占字节数：" << sizeof(unsigned char);
    cout << "	最大值：" << (numeric_limits<unsigned char>::max)();
    cout << "		最小值：" << (numeric_limits<unsigned char>::min)() << endl;
    cout << "wchar_t: 	" << "所占字节数：" << sizeof(wchar_t);
    cout << "	最大值：" << (numeric_limits<wchar_t>::max)();
    cout << "		最小值：" << (numeric_limits<wchar_t>::min)() << endl;
    cout << "short: 		" << "所占字节数：" << sizeof(short);
    cout << "	最大值：" << (numeric_limits<short>::max)();
    cout << "		最小值：" << (numeric_limits<short>::min)() << endl;
    cout << "int: 		" << "所占字节数：" << sizeof(int);
    cout << "	最大值：" << (numeric_limits<int>::max)();
    cout << "	最小值：" << (numeric_limits<int>::min)() << endl;
    cout << "unsigned: 	" << "所占字节数：" << sizeof(unsigned);
    cout << "	最大值：" << (numeric_limits<unsigned>::max)();
    cout << "	最小值：" << (numeric_limits<unsigned>::min)() << endl;
    cout << "long: 		" << "所占字节数：" << sizeof(long);
    cout << "	最大值：" << (numeric_limits<long>::max)();
    cout << "	最小值：" << (numeric_limits<long>::min)() << endl;
    cout << "unsigned long: 	" << "所占字节数：" << sizeof(unsigned long);
    cout << "	最大值：" << (numeric_limits<unsigned long>::max)();
    cout << "	最小值：" << (numeric_limits<unsigned long>::min)() << endl;
    cout << "double: 	" << "所占字节数：" << sizeof(double);
    cout << "	最大值：" << (numeric_limits<double>::max)();
    cout << "	最小值：" << (numeric_limits<double>::min)() << endl;
    cout << "long double: 	" << "所占字节数：" << sizeof(long double);
    cout << "	最大值：" << (numeric_limits<long double>::max)();
    cout << "	最小值：" << (numeric_limits<long double>::min)() << endl;
    cout << "float: 		" << "所占字节数：" << sizeof(float);
    cout << "	最大值：" << (numeric_limits<float>::max)();
    cout << "	最小值：" << (numeric_limits<float>::min)() << endl;
    cout << "size_t: 	" << "所占字节数：" << sizeof(size_t);
    cout << "	最大值：" << (numeric_limits<size_t>::max)();
    cout << "	最小值：" << (numeric_limits<size_t>::min)() << endl;
    cout << "string: 	" << "所占字节数：" << sizeof(string) << endl;
    // << "	最大值：" << (numeric_limits<string>::max)() << "	最小值：" << (numeric_limits<string>::min)() << endl;
    cout << "type: 		" << "************size**************"<< endl;
    return 0;
}