C语言和C++中的数据类型介绍

c语言于c99 这个标准中添加long long 类型。

#include 
#include 
//编译指令：gcc -std=c99 -pedantic 


int main(void)

{
    char c_min = schar_min;
    char c_max = schar_max;
    unsigned char uc_max = uchar_max;
    long  l_min = long_min;
    short s_min = shrt_min;
    long long  ll_min = llong_min;//c99增加long long 类型
    long long  ll_max = llong_max;
    unsigned long long  ull_max = ullong_max;
    printf ("max of  unsigned char:%d\n", uc_max);
    printf("min of char:%d\n", c_min);
    printf("max of char:%d\n", c_max);
    printf("min of short:%d\n", s_min);
    printf("min of long:%ld\n", l_min);
    printf("min of long long : %lld\n", ll_min);
    printf("max of long long : %lld\n", ll_max);
    printf ("max of unsigned long long : %llu\n", ull_max);
    return 0;
}

c++ 语言在c++11 这个标准中增加 long long 类型。

#include 
#include 
//g++  -std=c++03 -pedantic lim.cpp 无法通过编译，c++1998 不支持 long long 类型


using namespace std;

int main()

{
    // singed 标识符一般省略
    char c_min = schar_min;
    char c_max = schar_max;
    unsigned char uc_max = uchar_max;
    long  l_min = long_min;//long int 简写为long
    short s_min = shrt_min; //short int 简写为 short
    long long  ll_min = llong_min;//long long int 简写为long long
    long long  ll_max = llong_max;
    unsigned long long  ull_max = ullong_max;
    printf ("max of  unsigned char:%d\n", uc_max);
    printf("min of char:%d\n", c_min);
    printf("max of char:%d\n", c_max);
    printf("min of short:%d\n", s_min);
    printf("min of long:%ld\n", l_min);
    printf("min of long long : %lld\n", ll_min);
    printf("max of long long : %lld\n", ll_max);
    printf ("max of unsigned long long : %llu\n", ull_max);
    return 0;
}