报错为：Segmentation fault(coredump)

Question

int main(int argc, char *argv[]) 
{ 

char name [120];
char ch[MAX_LINE_SIZE];
char str[MAX_LINE_SIZE];
char * pf,* pt;
int charge;
int sum;
int i,j;
FILE * fp;
sprintf(name,"%s",argv[1]); 
printf("name is [%s]\n",name);
memset(str,0,MAX_LINE_SIZE);
memset(name,0,sizeof(name));
fp=fopen(name,"r");
while(1)
{ 
printf("begin\n");
memset(ch,0,MAX_LINE_SIZE);
if(fgets(ch,MAX_LINE_SIZE,fp) == NULL)
{
break;
}

Answer 1

memset(name,0,sizeof(name));fp=fopen(name,"r");文件名被memset了，估计没有打开成功，然后fgets就core了。需要判断fp是否为NULL，再进行文件操作