Structure pointer must be initialized reproduced Forgot deposit
struct student{
char *name;
int score;
struct student* next;
} This, * stu1;
int main () {
stu.name = (char *) malloc (sizeof (char));. / * 1 structure members need to initialize the pointer * /
strcpy(stu.name,"Jimy");
stu.score = 99;
stu1 = (struct student *) malloc (sizeof (struct student));. / * 2 * pointers to structures need to be initialized /
stu1-> name = (char *) malloc (sizeof (char));. / * 3 pointer structure pointer members also require initialization * /
stu.next = stu1;
strcpy(stu1->name,"Lucy");
stu1->score = 98;
stu1->next = NULL;
printf("name %s, score %d \n ",stu.name, stu.score);
printf("name %s, score %d \n ",stu1->name, stu1->score);
free(stu1);
Focus is malloc
Kernel is kmalloc
#include <linux/slab.h> void *kmalloc(size_t size, int flags);
The first argument to the size of the block kmalloc is to be allocated. The second parameter, allocation flag