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C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...0则从C100和C101多重继承而来。
struct C041
{
C041() : c_(0x01) {}
virtual void foo() { c_ = 0x02; }
char c_;
};
struct C100 : public virtual C041
{
C100() : c_(0x02) {}
char c_;
};
struct C101 : public virtual C041
{
C101() : c_(0x03) {}
...
A semantics for Bash scripts?
... its own right, but with features designed to make it easy to interact specifically with the operating system and filesystem. The POSIX shell's (hereafter referred to just as "the shell") semantics are a bit of a mutt, combining some features of LISP (s-expressions have a lot in common with shell wo...
Installation Issue with matplotlib Python [duplicate]
... and as a back-end is not the default. Set the back end of macosx that is differ compare with other windows or linux os.
Solution
I assume you have installed the pip matplotlib, there is a directory in your root called ~/.matplotlib.
Create a file ~/.matplotlib/matplotlibrc there and add the fo...
vc/mfc *通配符 批量删除文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
... FileOp.pFrom = delFileName;
FileOp.pTo = NULL;
if (SHFileOperation(&FileOp) != 0)
printf("删除文件:%S失败(Error:%d)\n", delFileName, GetLastError());
return 0;
}
经过测试，文件路径必须为绝对路径，相对路径会操作...
mfc 按钮变成了非xp风格、界面变成windows经典样式的原因总结 - C/C++ - 清...
... 非xp风格 xp风格stdafx.h中添加：#ifdef _UNICODE#if defined _M_IX86#pragma co...首先看一下xp风格与非xp风格：
非xp风格 xp风格
stdafx.h中添加：
#ifdef _UNICODE
#if defined _M_IX86
#pragma comme...
phpcms后台表单多选统计不准确的解决方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...码修改：
phpcms\modules\formguide\templates\formguide_stat.tpl.php
if(trim($__v[$v['field']])==trim($_kv)) $number++;
改为：
if(strpos(trim($__v[$v['field']]), trim($_kv)) !== false) $number++;
这样就完全OK了。phpcms 后台表单 多选统计
Are memory leaks ever ok? [closed]
...
Now consider a few dozen of this allocations. Now consider having to move the "main" body to routine that gets called multiple times. Enjoy. - I agree with the sentiment that it's nto such a big problem in this scenario, but...
How to open, read, and write from serial port in C?
...o-out a struct termios, configure it, and then set the tty with tcsetattr. If you use the zero-out method, then you will experience unexplained intermittent failures, especially on the BSDs and OS X. "Unexplained intermittent failures" include hanging in read(3).
#include <errno.h>
#include &...
Using curl to upload POST data with files
...t only send data parameters in HTTP POST but to also upload files with specific form name. How should I go about doing that ?
...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...、OceanBase启动时的使用模式
二、 基础数据结构
2.1 easy_list_t
2.2 easy_pool_t
2.3 easy_buf_t
2.4 easy_connection_t
三、 连接建立
四、 同步处理(OceanBase少量使用这种模式)
五、 异步处理(OceanBase大量采用这种模式)
六、 资源管理
...