因此,我在用C实现mtime结构时遇到了问题,因为我正在尝试检查文件的最后修改时间。在编译时,我收到以下错误:
pr8.1.c:246: error: incompatible types when assigning to type struct timespec from type time_t make: *** [pr8] Error 1
我使用的代码如下:
static struct timespec mtime(const char *file)
{
struct stat s;
struct timespec t = { 0, 0 };
if (stat
我需要向Linux kernel 4.8.0中的task_struct添加成员。但是,当我这样做并尝试构建内核时,错误消息显示:
In file included from linux-hwe-4.8.0/include/uapi/linux/stddef.h:1:0,
from linux-hwe-4.8.0/include/linux/stddef.h:4,
from linux-hwe-4.8.0/include/uapi/linux/posix_types.h:4,
from linux-hwe-4.8.0/
我想知道,如何通过指针访问struct的第一个成员。我已经尝试过了: #include <stdio.h>
#include <stdlib.h>
struct foo
{
int a;
char *str;
};
int main()
{
struct foo *p = malloc(sizeof(struct foo));
int val = 10;
*(int**)p = &val; //set the value of the first member of struct foo
printf(