【简答题】![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
已知C源程序如下:
#include <stdio.h>
#include <string.h>
void reverse(char s[]) {
int c, i, j;
for(i=0, j=strlen(s)-1; i<j; i++, j++) {
c=s[i];
s[i]=s[j];
s[j]=c;
}
}
void getHex(int number, char s[]) {
int i;
i=0;
while(number>0) {
if(number % 16<10)
s[i++]=number % 16+’0’;
else
switch(number % ]6) {
case 10: s[i++]=’A’; break;
case 11: s[i++]=’B’; break;
case 12: s[i++]=’C’; break;
case 13: s[i++]=’D’; break;
case 14:s[i++ ]=’E’; break;
case 15: s[i++]=’F’; break;
default: printf("Error"); break;
}
number/=16;
}
s[i]=’\0’;
reverse(s);
}
int main() {
unsigned int number;
int i=0;
char s[50];
printf("% s","please input number:\n");
scanf("% d", &number);
getHex(number, s);
i=0;
while(s[i])
printf("% c", s[i++]);
return 0;
} 设计一组测试用例,使该程序所有函数的语句覆盖率和分支覆盖率均能达到100%。如果认为该程序的语句覆盖率或分支率无法达到100%,需说明为什么。
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参考答案:
![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
参考解析:
![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)