vc和gcc对C语言数据类型长度的定义

vc2010中......

测试代码：

#include <stdio.h>#include <iostream>                  int main(){printf("in windows ...\n");int l_char=sizeof(char);printf("char ----> %d\n",l_char);int l_int=sizeof(int);printf("int ----> %d\n",l_int);int l_short=sizeof(short);printf("short ----> %d\n",l_short);int l_long=sizeof(long);printf("long ----> %d\n",l_long);int l_float=sizeof(float);printf("float ----> %d\n",l_float);int l_double=sizeof(double);printf("double ----> %d\n",l_double);int l_ldouble=sizeof(long double);printf("long double ----> %d\n",l_ldouble);system("pause");return 0;}

运行结果：

gcc中 ......

测试代码：

#include <stdio.h>int main(){        printf("in linux ...\n");        int l_char=sizeof(char);        printf("char ----> %d\n",l_char);        int l_int=sizeof(int);        printf("int ----> %d\n",l_int);        int l_short=sizeof(short);        printf("short ----> %d\n",l_short);        int l_long=sizeof(long);        printf("long ----> %d\n",l_long);        int l_float=sizeof(float);        printf("float ----> %d\n",l_float);        int l_double=sizeof(double);        printf("double ----> %d\n",l_double);        int l_ldouble=sizeof(long double);        printf("long double ----> %d\n",l_ldouble);        return 0;}

运行结果：

可见在long double的长度定义上vc和gcc不一样，其他的都差不多。