5. enum ENUM_A
{
X1,
Y1,
Z1 = 5,
A1,
B1
};
enum ENUM_A enumA = Y1;
enum ENUM_A enumB = B1;
请问 enumA = ____; enumB = ______;
6.以下程序的输出结果是________.
#include <stdio.h>
int fun(int x,int y)
{
static int m = 0;
static int i = 2;
i += m + 1;
m = i + x + y;
return m;
}
void main()
{
int j = 4;
int m = 1;
int k;
k = fun(j, m);
printf("%d,", k);
k=fun(j, m);
printf("%d\n", k);
return;
}
7.以下程序的输出结果为________
#define CIR(r) r*r /*请注意这种定义的缺陷，不允许这么定义*/
void main()
{
int a = 1;
int b = 2;
int t;
t = CIR(a + b);
printf("%d\n", t);
return;
}
8.在VRP中，实现了strncpy类似的函数，定义如下:
#define CHAR char
#define ULONG unsigned long
#define VOID void
CHAR *VOS_strncpy(CHAR *pcDest, const CHAR *szSrc, ULONG ulLength)
{
CHAR *pcPoint = pcDest;
if(( NULL == szSrc ) || ( NULL == pcDest ) ))
{
return NULL;
}
while(ulLength && (*pcPoint = *szSrc))/*这里采用了在判断语句中赋值的方式(*pcPoint = *szSrc)，建议尽量不使用*/
{
pcPoint++;
szSrc++;
ulLength--;
}
if(!ulLength)
{
*pcPoint = '\0';
}
return pcDest;
}
VOID main(VOID)
{
CHAR szStrBuf[ ] = "1234567890";
CHAR szStrBuf1[ ] = "1234567890";
strncpy(szStrBuf, "ABCD", strlen("ABCD"));
VOS_strncpy(szStrBuf1, "ABCD", strlen("ABCD"));
printf("Str1 = %s\nStr2 = %s", szStrBuf, szStrBuf1);
}
程序的输出结果为________
