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[完整实例源码]C&C++修改文件只读属性 - C/C++ - 清泛网 - 专注C/C++及内核技术
...AR* envp[])
{
//指定要读取文件的属性
CString strPath = "d:\\test.txt";
DWORD dwAttrs = GetFileAttributes(strPath);
//空32，只读33，隐藏34，只读隐藏35
if (dwAttrs & FILE_ATTRIBUTE_READONLY && (dwAttrs < 34))
{
//去掉文件只读属性
dwAttrs &= 0x3E;
...
jsoncpp 不能处理__int64(long long)类型数据 - C/C++ - 清泛网 - 专注C/C++及内核技术
...成json的时候报了错误，很显然这不是我程序的问题。
Test.cpp: In function ‘std::string createJsonData()’:
Test.cpp:41: error: conversion from ‘long long int’ to ‘const Json::Value’ is ambiguous
include/json/value.h:205: note: candidates are...
解决：ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...
...e l.object_id=o.object_id
结果：
session_id owner object_name
158 SA TEST_1
...
对比想要创建的索引，定位哪些会话需要被删除
2：找出所有照成锁的会话
select t2.username,t2.sid,t2.serial#,t2.logon_time from v$locked_object t1,v$session t2 where t1.session_id=t...
msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 ...
...串。如 char *p = "abc"; delete p;
可能原因3：
CString m_strTest;
...
GetPrivateProfileString(INI_SECTION, "test", "", m_strTest.GetBuffer(), MAX_PATH, INI_FILE);
以上代码对话框资源释放的时候会崩溃，出现如题的错误，正确写法应该如下：
CString m_...
C++ SpinLock 自旋锁的代码实现（全网最简略的方式） - C/C++ - 清泛网 - ...
...:f_(ATOMIC_FLAG_INIT) {}
virtual ~SpinLock() {}
void lock() { while(f_.test_and_set(memory_order_acquire)); }
void unlock() { f_.clear(memory_order_release); }
};
2、有退避策略的自旋锁，尝试一定次数(65535)失败后让出线程调度权：
class SpinLockWithYield {
ato...
使用模拟器构建应用程序 · App Inventor 2 中文网
...ntor includes an emulator for the phone. The emulator lets you develop and test apps using a virtual phone instead of a real phone. Instead of connecting a phone to the USB port, just start the emulator program. When you click Connect to Phone in the Blocks Editor, your app will appear in the emulat...
What does Maven do, in theory and in practice? When is it worth to use it? [closed]
... to define the tasks you want to do. You don't need to write a "compile", "test", "package", or "clean" step like you would have to do in Ant or a Makefile. Just put the files in the places in which Maven expects them and it should work off of the bat.
Maven also has lots of nice plug-ins that you c...
What are the correct link options to use std::thread in GCC under linux?
Hi I am trying to use std::thread with G++. Here is my test code
5 Answers
5
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Should programmers use SSIS, and if so, why? [closed]
...nd maintaining functionality in a VS solution is so very much easier. Unit testing with VS is easy. All I need to do is to check in the source in Subversion, and verify how it loaded. Unit testing SSIS packages is very involved to put it mildly.
Besides, there were situations when SSIS was silently...
How to calculate md5 hash of a file using javascript
... HTML5 FileAPI, so be sure to check for it.
There is a full example in the test folder.
https://github.com/satazor/SparkMD5
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