question stringlengths 1 128 | poster stringclasses 1
value | comments listlengths 1 23 |
|---|---|---|
binder_poll()中的一段代码 | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "&& 前为假 后面就不执行 && 前为真 后面执行",
"referer": "user-0"
},
{
"cid": "2",
"user": "user-0",
"content": "不习惯这个写法,嘿嘿",
"referer": "user-0"
},
{
"cid": "3",
"user": "user-2",
"content": "逻辑运算你都不懂了?",
"referer": "user-0"
}
] |
如何用时间控制程序的运行 | user-0 | [
{
"cid": "1",
"user": "user-0",
"content": "你好 谢谢你的解答 对我很有帮助 我还想问一下 怎么使用逻辑时间控制 而不使用机械时间?就是整个程序的时间计算使用逻辑时间",
"referer": "user-0"
},
{
"cid": "2",
"user": "user-1",
"content": "#pragma comment(lib,\"user32\") #include <stdio.h> #include <time.h> #include <sys/timeb.h> #include <... |
汉字和分隔符在一起,如何解析 | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "//iconv_linux下字符集编码转换轻松实现 (1) iconv_t iconv_open(const char *tocode, const char *fromcode); //此函数说明将要进行哪两种编码的转换,tocode是目标编码,fromcode是原编码,该函数返回一个转换句柄,供以下两个函数使用。 (2) size_t iconv(iconv_t cd,char **inbuf,size_t *inbytesleft,char **outbuf,size_t *outbytesleft); //... |
linux下面的信号的问题??? | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "引用 2 楼 user-3 的回复:man 7 signal 里面有解释 Real-time Signals Linux supports real-time signals as originally defined in the POSIX.1b real-time extensions (and now included in POSIX.1-2001). Linux sup- ports 32 real-time signals, numbered... |
关于vector new delete的问题 | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "#include <iostream> #include <vector> using namespace std; typedef struct //定义结构体AA { int a; } AA; int main() { vector<AA> tempa(2); //定义AA类型的向量 vector<AA> *p1=new vector<AA>(4);//定义AA类型的指针 vector<AA> *p2=new vector<AA>(4);//定义AA类型的指针 ... |
判断ip地址属不属于某个区间 | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "先把 所有的 小段 都补成 三位数, 然后 转化成 字符串,或者数字都可以",
"referer": "user-0"
},
{
"cid": "2",
"user": "user-2",
"content": "妈的,老子得了精神病",
"referer": "user-0"
},
{
"cid": "3",
"user": "user-3",
"content": "直接字符串比较可以吧",
"referer": "... |
dev c++新建工程为什么老是不成功? | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "搜“跟我一起写makefile”",
"referer": "user-0"
},
{
"cid": "2",
"user": "user-2",
"content": "别叫 main.cpp 改名就可以了。",
"referer": "user-0"
}
] |
求教hash值和数组下标对应的问题 | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "#include <stdio.h> int d[12]={26,31,353,387,91,28,337,12,140,496,1,111}; int i; int main() { for (i=0;i<12;i++) { printf(\"%3d %lld\\n\",d[i],(((unsigned long long int)d[i] * 2654435769ull) & 0xFFFFFFFFull) >> 28); } return 0; }",
"refe... |
编译报错,函数返回类型? | user-0 | [
{
"cid": "1",
"user": "user-0",
"content": "引用 1 楼 user-4 的回复:要么进行函数的原型声明,要么把函数的实现放到函数的调用之前. 的确是函数声明的问题,不声明,gcc就默认返回int...",
"referer": "user-0"
},
{
"cid": "2",
"user": "user-1",
"content": "49行改为single = (long)a[i] * myExponentiation(x, i);",
"referer": "user-0"
},
{
"c... |
想问一下GCC编译器下的程序需要注意什么?? | user-0 | [
{
"cid": "1",
"user": "user-1",
"content": "你的冒泡写的有问题,head3也参与了排序,链表头变成了最小的一项,简单来说排好序后是这样的,: 头->1->2->3 你的变成了 1->2->3->头 (这个主要看头的指数的大小,因为你未指定,所以可能正,可能负,从你的截图看是正的,一般不同机器,不同编译器,未分配数都不一样的,所以你的VS和gcc结果就有差异了) 然后你执行合并的时候少了1项,多了一项head3。 你这样改: int i, j; \tNODE *p = head3; \tint count = 0; \twhile (p->next != N... |
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